71509720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 166212000

約数和(自身を除く): 94702280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 89, 106, 178, 212, 265, 356, 379, 424, 445, 530, 712, 758, 890, 1060, 1516, 1780, 1895, 2120, 3032, 3560, 3790, 4717, 7580, 9434, 15160, 18868, 20087, 23585, 33731, 37736, 40174, 47170, 67462, 80348, 94340, 100435, 134924, 160696, 168655, 188680, 200870, 269848, 337310, 401740, 674620, 803480, 1349240, 1787743, 3575486, 7150972, 8938715, 14301944, 17877430, 35754860, 71509720]

約数ペア:

[(1, 71509720), (2, 35754860), (4, 17877430), (5, 14301944), (8, 8938715), (10, 7150972), (20, 3575486), (40, 1787743), (53, 1349240), (89, 803480), (106, 674620), (178, 401740), (212, 337310), (265, 269848), (356, 200870), (379, 188680), (424, 168655), (445, 160696), (530, 134924), (712, 100435), (758, 94340), (890, 80348), (1060, 67462), (1516, 47170), (1780, 40174), (1895, 37736), (2120, 33731), (3032, 23585), (3560, 20087), (3790, 18868), (4717, 15160), (7580, 9434)]