1259423360

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:339

約数の個数: 256

約数和(自身を含む): 3536870400

約数和(自身を除く): 2277447040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 52, 62, 64, 65, 76, 80, 95, 104, 124, 128, 130, 152, 155, 160, 190, 208, 247, 248, 257, 260, 304, 310, 320, 380, 403, 416, 494, 496, 514, 520, 589, 608, 620, 640, 760, 806, 832, 988, 992, 1028, 1040, 1178, 1216, 1235, 1240, 1285, 1520, 1612, 1664, 1976, 1984, 2015, 2056, 2080, 2356, 2432, 2470, 2480, 2570, 2945, 3040, 3224, 3341, 3952, 3968, 4030, 4112, 4160, 4712, 4883, 4940, 4960, 5140, 5890, 6080, 6448, 6682, 7657, 7904, 7967, 8060, 8224, 8320, 9424, 9766, 9880, 9920, 10280, 11780, 12160, 12896, 13364, 15314, 15808, 15934, 16120, 16448, 16705, 18848, 19532, 19760, 19840, 20560, 23560, 24415, 25792, 26728, 30628, 31616, 31868, 32240, 32896, 33410, 37696, 38285, 39064, 39520, 39835, 41120, 47120, 48830, 51584, 53456, 61256, 63479, 63736, 64480, 66820, 75392, 76570, 78128, 79040, 79670, 82240, 94240, 97660, 103571, 106912, 122512, 126958, 127472, 128960, 133640, 151373, 153140, 156256, 158080, 159340, 164480, 188480, 195320, 207142, 213824, 245024, 253916, 254944, 257920, 267280, 302746, 306280, 312512, 317395, 318680, 376960, 390640, 414284, 427648, 490048, 507832, 509888, 517855, 534560, 605492, 612560, 625024, 634790, 637360, 756865, 781280, 828568, 980096, 1015664, 1019776, 1035710, 1069120, 1210984, 1225120, 1269580, 1274720, 1513730, 1562560, 1657136, 1967849, 2031328, 2071420, 2138240, 2421968, 2450240, 2539160, 2549440, 3027460, 3125120, 3314272, 3935698, 4062656, 4142840, 4843936, 4900480, 5078320, 5098880, 6054920, 6628544, 7871396, 8125312, 8285680, 9687872, 9839245, 10156640, 12109840, 13257088, 15742792, 16571360, 19375744, 19678490, 20313280, 24219680, 31485584, 33142720, 39356980, 40626560, 48439360, 62971168, 66285440, 78713960, 96878720, 125942336, 157427920, 251884672, 314855840, 629711680, 1259423360]

約数ペア:

[(1, 1259423360), (2, 629711680), (4, 314855840), (5, 251884672), (8, 157427920), (10, 125942336), (13, 96878720), (16, 78713960), (19, 66285440), (20, 62971168), (26, 48439360), (31, 40626560), (32, 39356980), (38, 33142720), (40, 31485584), (52, 24219680), (62, 20313280), (64, 19678490), (65, 19375744), (76, 16571360), (80, 15742792), (95, 13257088), (104, 12109840), (124, 10156640), (128, 9839245), (130, 9687872), (152, 8285680), (155, 8125312), (160, 7871396), (190, 6628544), (208, 6054920), (247, 5098880), (248, 5078320), (257, 4900480), (260, 4843936), (304, 4142840), (310, 4062656), (320, 3935698), (380, 3314272), (403, 3125120), (416, 3027460), (494, 2549440), (496, 2539160), (514, 2450240), (520, 2421968), (589, 2138240), (608, 2071420), (620, 2031328), (640, 1967849), (760, 1657136), (806, 1562560), (832, 1513730), (988, 1274720), (992, 1269580), (1028, 1225120), (1040, 1210984), (1178, 1069120), (1216, 1035710), (1235, 1019776), (1240, 1015664), (1285, 980096), (1520, 828568), (1612, 781280), (1664, 756865), (1976, 637360), (1984, 634790), (2015, 625024), (2056, 612560), (2080, 605492), (2356, 534560), (2432, 517855), (2470, 509888), (2480, 507832), (2570, 490048), (2945, 427648), (3040, 414284), (3224, 390640), (3341, 376960), (3952, 318680), (3968, 317395), (4030, 312512), (4112, 306280), (4160, 302746), (4712, 267280), (4883, 257920), (4940, 254944), (4960, 253916), (5140, 245024), (5890, 213824), (6080, 207142), (6448, 195320), (6682, 188480), (7657, 164480), (7904, 159340), (7967, 158080), (8060, 156256), (8224, 153140), (8320, 151373), (9424, 133640), (9766, 128960), (9880, 127472), (9920, 126958), (10280, 122512), (11780, 106912), (12160, 103571), (12896, 97660), (13364, 94240), (15314, 82240), (15808, 79670), (15934, 79040), (16120, 78128), (16448, 76570), (16705, 75392), (18848, 66820), (19532, 64480), (19760, 63736), (19840, 63479), (20560, 61256), (23560, 53456), (24415, 51584), (25792, 48830), (26728, 47120), (30628, 41120), (31616, 39835), (31868, 39520), (32240, 39064), (32896, 38285), (33410, 37696)]