15778360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1640

約数の個数: 64

約数和(自身を含む): 40269600

約数和(自身を除く): 24491240

約数列:

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

約数ペア:

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