81231160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{601}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 190713600

約数和(自身を除く): 109482440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 436, 545, 601, 620, 872, 1090, 1202, 1240, 2180, 2404, 3005, 3379, 4360, 4808, 6010, 6758, 12020, 13516, 16895, 18631, 24040, 27032, 33790, 37262, 65509, 67580, 74524, 93155, 131018, 135160, 149048, 186310, 262036, 327545, 372620, 524072, 655090, 745240, 1310180, 2030779, 2620360, 4061558, 8123116, 10153895, 16246232, 20307790, 40615580, 81231160]

約数ペア:

[(1, 81231160), (2, 40615580), (4, 20307790), (5, 16246232), (8, 10153895), (10, 8123116), (20, 4061558), (31, 2620360), (40, 2030779), (62, 1310180), (109, 745240), (124, 655090), (155, 524072), (218, 372620), (248, 327545), (310, 262036), (436, 186310), (545, 149048), (601, 135160), (620, 131018), (872, 93155), (1090, 74524), (1202, 67580), (1240, 65509), (2180, 37262), (2404, 33790), (3005, 27032), (3379, 24040), (4360, 18631), (4808, 16895), (6010, 13516), (6758, 12020)]