20931312

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 80

約数和(自身を含む): 58032000

約数和(自身を除く): 37100688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 59, 76, 114, 118, 152, 177, 228, 236, 304, 354, 389, 456, 472, 708, 778, 912, 944, 1121, 1167, 1416, 1556, 2242, 2334, 2832, 3112, 3363, 4484, 4668, 6224, 6726, 7391, 8968, 9336, 13452, 14782, 17936, 18672, 22173, 22951, 26904, 29564, 44346, 45902, 53808, 59128, 68853, 88692, 91804, 118256, 137706, 177384, 183608, 275412, 354768, 367216, 436069, 550824, 872138, 1101648, 1308207, 1744276, 2616414, 3488552, 5232828, 6977104, 10465656, 20931312]

約数ペア:

[(1, 20931312), (2, 10465656), (3, 6977104), (4, 5232828), (6, 3488552), (8, 2616414), (12, 1744276), (16, 1308207), (19, 1101648), (24, 872138), (38, 550824), (48, 436069), (57, 367216), (59, 354768), (76, 275412), (114, 183608), (118, 177384), (152, 137706), (177, 118256), (228, 91804), (236, 88692), (304, 68853), (354, 59128), (389, 53808), (456, 45902), (472, 44346), (708, 29564), (778, 26904), (912, 22951), (944, 22173), (1121, 18672), (1167, 17936), (1416, 14782), (1556, 13452), (2242, 9336), (2334, 8968), (2832, 7391), (3112, 6726), (3363, 6224), (4484, 4668)]