68611920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21991}}^1$

素因数の和:22020

約数の個数: 80

約数和(自身を含む): 229068672

約数和(自身を除く): 160456752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 21991, 43982, 65973, 87964, 109955, 131946, 175928, 219910, 263892, 285883, 329865, 351856, 439820, 527784, 571766, 659730, 857649, 879640, 1055568, 1143532, 1319460, 1429415, 1715298, 1759280, 2287064, 2638920, 2858830, 3430596, 4288245, 4574128, 5277840, 5717660, 6861192, 8576490, 11435320, 13722384, 17152980, 22870640, 34305960, 68611920]

約数ペア:

[(1, 68611920), (2, 34305960), (3, 22870640), (4, 17152980), (5, 13722384), (6, 11435320), (8, 8576490), (10, 6861192), (12, 5717660), (13, 5277840), (15, 4574128), (16, 4288245), (20, 3430596), (24, 2858830), (26, 2638920), (30, 2287064), (39, 1759280), (40, 1715298), (48, 1429415), (52, 1319460), (60, 1143532), (65, 1055568), (78, 879640), (80, 857649), (104, 659730), (120, 571766), (130, 527784), (156, 439820), (195, 351856), (208, 329865), (240, 285883), (260, 263892), (312, 219910), (390, 175928), (520, 131946), (624, 109955), (780, 87964), (1040, 65973), (1560, 43982), (3120, 21991)]