20293360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 50621760

約数和(自身を除く): 30328400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 41, 46, 80, 82, 92, 115, 164, 184, 205, 230, 269, 328, 368, 410, 460, 538, 656, 820, 920, 943, 1076, 1345, 1640, 1840, 1886, 2152, 2690, 3280, 3772, 4304, 4715, 5380, 6187, 7544, 9430, 10760, 11029, 12374, 15088, 18860, 21520, 22058, 24748, 30935, 37720, 44116, 49496, 55145, 61870, 75440, 88232, 98992, 110290, 123740, 176464, 220580, 247480, 253667, 441160, 494960, 507334, 882320, 1014668, 1268335, 2029336, 2536670, 4058672, 5073340, 10146680, 20293360]

約数ペア:

[(1, 20293360), (2, 10146680), (4, 5073340), (5, 4058672), (8, 2536670), (10, 2029336), (16, 1268335), (20, 1014668), (23, 882320), (40, 507334), (41, 494960), (46, 441160), (80, 253667), (82, 247480), (92, 220580), (115, 176464), (164, 123740), (184, 110290), (205, 98992), (230, 88232), (269, 75440), (328, 61870), (368, 55145), (410, 49496), (460, 44116), (538, 37720), (656, 30935), (820, 24748), (920, 22058), (943, 21520), (1076, 18860), (1345, 15088), (1640, 12374), (1840, 11029), (1886, 10760), (2152, 9430), (2690, 7544), (3280, 6187), (3772, 5380), (4304, 4715)]