78879320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8923}}^1$

素因数の和:8964

約数の個数: 64

約数和(自身を含む): 202396320

約数和(自身を除く): 123517000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 8923, 17846, 35692, 44615, 71384, 89230, 115999, 151691, 178460, 231998, 303382, 356920, 463996, 579995, 606764, 758455, 927992, 1159990, 1213528, 1516910, 1971983, 2319980, 3033820, 3943966, 4639960, 6067640, 7887932, 9859915, 15775864, 19719830, 39439660, 78879320]

約数ペア:

[(1, 78879320), (2, 39439660), (4, 19719830), (5, 15775864), (8, 9859915), (10, 7887932), (13, 6067640), (17, 4639960), (20, 3943966), (26, 3033820), (34, 2319980), (40, 1971983), (52, 1516910), (65, 1213528), (68, 1159990), (85, 927992), (104, 758455), (130, 606764), (136, 579995), (170, 463996), (221, 356920), (260, 303382), (340, 231998), (442, 178460), (520, 151691), (680, 115999), (884, 89230), (1105, 71384), (1768, 44615), (2210, 35692), (4420, 17846), (8840, 8923)]