20942160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1229}}^1$

素因数の和:1316

約数の個数: 80

約数和(自身を含む): 65888640

約数和(自身を除く): 44946480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1229, 1420, 1704, 2130, 2458, 2840, 3408, 3687, 4260, 4916, 5680, 6145, 7374, 8520, 9832, 12290, 14748, 17040, 18435, 19664, 24580, 29496, 36870, 49160, 58992, 73740, 87259, 98320, 147480, 174518, 261777, 294960, 349036, 436295, 523554, 698072, 872590, 1047108, 1308885, 1396144, 1745180, 2094216, 2617770, 3490360, 4188432, 5235540, 6980720, 10471080, 20942160]

約数ペア:

[(1, 20942160), (2, 10471080), (3, 6980720), (4, 5235540), (5, 4188432), (6, 3490360), (8, 2617770), (10, 2094216), (12, 1745180), (15, 1396144), (16, 1308885), (20, 1047108), (24, 872590), (30, 698072), (40, 523554), (48, 436295), (60, 349036), (71, 294960), (80, 261777), (120, 174518), (142, 147480), (213, 98320), (240, 87259), (284, 73740), (355, 58992), (426, 49160), (568, 36870), (710, 29496), (852, 24580), (1065, 19664), (1136, 18435), (1229, 17040), (1420, 14748), (1704, 12290), (2130, 9832), (2458, 8520), (2840, 7374), (3408, 6145), (3687, 5680), (4260, 4916)]