64813520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47657}}^1$

素因数の和:47687

約数の個数: 40

約数和(自身を含む): 159558984

約数和(自身を除く): 94745464

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 47657, 95314, 190628, 238285, 381256, 476570, 762512, 810169, 953140, 1620338, 1906280, 3240676, 3812560, 4050845, 6481352, 8101690, 12962704, 16203380, 32406760, 64813520]

約数ペア:

[(1, 64813520), (2, 32406760), (4, 16203380), (5, 12962704), (8, 8101690), (10, 6481352), (16, 4050845), (17, 3812560), (20, 3240676), (34, 1906280), (40, 1620338), (68, 953140), (80, 810169), (85, 762512), (136, 476570), (170, 381256), (272, 238285), (340, 190628), (680, 95314), (1360, 47657)]