31556720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1642

約数の個数: 80

約数和(自身を含む): 83223840

約数和(自身を除く): 51667120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1597, 1976, 2470, 3194, 3952, 4940, 6388, 7985, 9880, 12776, 15970, 19760, 20761, 25552, 30343, 31940, 41522, 60686, 63880, 83044, 103805, 121372, 127760, 151715, 166088, 207610, 242744, 303430, 332176, 394459, 415220, 485488, 606860, 788918, 830440, 1213720, 1577836, 1660880, 1972295, 2427440, 3155672, 3944590, 6311344, 7889180, 15778360, 31556720]

約数ペア:

[(1, 31556720), (2, 15778360), (4, 7889180), (5, 6311344), (8, 3944590), (10, 3155672), (13, 2427440), (16, 1972295), (19, 1660880), (20, 1577836), (26, 1213720), (38, 830440), (40, 788918), (52, 606860), (65, 485488), (76, 415220), (80, 394459), (95, 332176), (104, 303430), (130, 242744), (152, 207610), (190, 166088), (208, 151715), (247, 127760), (260, 121372), (304, 103805), (380, 83044), (494, 63880), (520, 60686), (760, 41522), (988, 31940), (1040, 30343), (1235, 25552), (1520, 20761), (1597, 19760), (1976, 15970), (2470, 12776), (3194, 9880), (3952, 7985), (4940, 6388)]