51961520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2939}}^1$

素因数の和:2982

約数の個数: 80

約数和(自身を含む): 137803680

約数和(自身を除く): 85842160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 2939, 3536, 4420, 5878, 8840, 11756, 14695, 17680, 23512, 29390, 38207, 47024, 49963, 58780, 76414, 99926, 117560, 152828, 191035, 199852, 235120, 249815, 305656, 382070, 399704, 499630, 611312, 649519, 764140, 799408, 999260, 1299038, 1528280, 1998520, 2598076, 3056560, 3247595, 3997040, 5196152, 6495190, 10392304, 12990380, 25980760, 51961520]

約数ペア:

[(1, 51961520), (2, 25980760), (4, 12990380), (5, 10392304), (8, 6495190), (10, 5196152), (13, 3997040), (16, 3247595), (17, 3056560), (20, 2598076), (26, 1998520), (34, 1528280), (40, 1299038), (52, 999260), (65, 799408), (68, 764140), (80, 649519), (85, 611312), (104, 499630), (130, 399704), (136, 382070), (170, 305656), (208, 249815), (221, 235120), (260, 199852), (272, 191035), (340, 152828), (442, 117560), (520, 99926), (680, 76414), (884, 58780), (1040, 49963), (1105, 47024), (1360, 38207), (1768, 29390), (2210, 23512), (2939, 17680), (3536, 14695), (4420, 11756), (5878, 8840)]