66285440

素因数分解:

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

素因数の和:320

約数の個数: 128

約数和(自身を含む): 176843520

約数和(自身を除く): 110558080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 257, 260, 310, 320, 403, 416, 496, 514, 520, 620, 640, 806, 832, 992, 1028, 1040, 1240, 1285, 1612, 1664, 1984, 2015, 2056, 2080, 2480, 2570, 3224, 3341, 3968, 4030, 4112, 4160, 4960, 5140, 6448, 6682, 7967, 8060, 8224, 8320, 9920, 10280, 12896, 13364, 15934, 16120, 16448, 16705, 19840, 20560, 25792, 26728, 31868, 32240, 32896, 33410, 39835, 41120, 51584, 53456, 63736, 64480, 66820, 79670, 82240, 103571, 106912, 127472, 128960, 133640, 159340, 164480, 207142, 213824, 254944, 257920, 267280, 318680, 414284, 427648, 509888, 517855, 534560, 637360, 828568, 1019776, 1035710, 1069120, 1274720, 1657136, 2071420, 2138240, 2549440, 3314272, 4142840, 5098880, 6628544, 8285680, 13257088, 16571360, 33142720, 66285440]

約数ペア:

[(1, 66285440), (2, 33142720), (4, 16571360), (5, 13257088), (8, 8285680), (10, 6628544), (13, 5098880), (16, 4142840), (20, 3314272), (26, 2549440), (31, 2138240), (32, 2071420), (40, 1657136), (52, 1274720), (62, 1069120), (64, 1035710), (65, 1019776), (80, 828568), (104, 637360), (124, 534560), (128, 517855), (130, 509888), (155, 427648), (160, 414284), (208, 318680), (248, 267280), (257, 257920), (260, 254944), (310, 213824), (320, 207142), (403, 164480), (416, 159340), (496, 133640), (514, 128960), (520, 127472), (620, 106912), (640, 103571), (806, 82240), (832, 79670), (992, 66820), (1028, 64480), (1040, 63736), (1240, 53456), (1285, 51584), (1612, 41120), (1664, 39835), (1984, 33410), (2015, 32896), (2056, 32240), (2080, 31868), (2480, 26728), (2570, 25792), (3224, 20560), (3341, 19840), (3968, 16705), (4030, 16448), (4112, 16120), (4160, 15934), (4960, 13364), (5140, 12896), (6448, 10280), (6682, 9920), (7967, 8320), (8060, 8224)]