1218632320

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:546

約数の個数: 128

約数和(自身を含む): 3031603200

約数和(自身を除く): 1812970880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 239, 248, 257, 310, 320, 478, 496, 514, 620, 640, 956, 992, 1028, 1195, 1240, 1285, 1912, 1984, 2056, 2390, 2480, 2570, 3824, 3968, 4112, 4780, 4960, 5140, 7409, 7648, 7967, 8224, 9560, 9920, 10280, 14818, 15296, 15934, 16448, 19120, 19840, 20560, 29636, 30592, 31868, 32896, 37045, 38240, 39835, 41120, 59272, 61423, 63736, 74090, 76480, 79670, 82240, 118544, 122846, 127472, 148180, 152960, 159340, 164480, 237088, 245692, 254944, 296360, 307115, 318680, 474176, 491384, 509888, 592720, 614230, 637360, 948352, 982768, 1019776, 1185440, 1228460, 1274720, 1904113, 1965536, 2370880, 2456920, 2549440, 3808226, 3931072, 4741760, 4913840, 5098880, 7616452, 7862144, 9520565, 9827680, 15232904, 19041130, 19655360, 30465808, 38082260, 39310720, 60931616, 76164520, 121863232, 152329040, 243726464, 304658080, 609316160, 1218632320]

約数ペア:

[(1, 1218632320), (2, 609316160), (4, 304658080), (5, 243726464), (8, 152329040), (10, 121863232), (16, 76164520), (20, 60931616), (31, 39310720), (32, 38082260), (40, 30465808), (62, 19655360), (64, 19041130), (80, 15232904), (124, 9827680), (128, 9520565), (155, 7862144), (160, 7616452), (239, 5098880), (248, 4913840), (257, 4741760), (310, 3931072), (320, 3808226), (478, 2549440), (496, 2456920), (514, 2370880), (620, 1965536), (640, 1904113), (956, 1274720), (992, 1228460), (1028, 1185440), (1195, 1019776), (1240, 982768), (1285, 948352), (1912, 637360), (1984, 614230), (2056, 592720), (2390, 509888), (2480, 491384), (2570, 474176), (3824, 318680), (3968, 307115), (4112, 296360), (4780, 254944), (4960, 245692), (5140, 237088), (7409, 164480), (7648, 159340), (7967, 152960), (8224, 148180), (9560, 127472), (9920, 122846), (10280, 118544), (14818, 82240), (15296, 79670), (15934, 76480), (16448, 74090), (19120, 63736), (19840, 61423), (20560, 59272), (29636, 41120), (30592, 39835), (31868, 38240), (32896, 37045)]