66552560

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11717}}^1$

素因数の和:11801

約数の個数: 40

約数和(自身を含む): 156927456

約数和(自身を除く): 90374896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 11717, 23434, 46868, 58585, 93736, 117170, 187472, 234340, 468680, 831907, 937360, 1663814, 3327628, 4159535, 6655256, 8319070, 13310512, 16638140, 33276280, 66552560]

約数ペア:

[(1, 66552560), (2, 33276280), (4, 16638140), (5, 13310512), (8, 8319070), (10, 6655256), (16, 4159535), (20, 3327628), (40, 1663814), (71, 937360), (80, 831907), (142, 468680), (284, 234340), (355, 187472), (568, 117170), (710, 93736), (1136, 58585), (1420, 46868), (2840, 23434), (5680, 11717)]