15721204580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{4877}}^1$

素因数の和:5421

約数の個数: 96

約数和(自身を含む): 36877680000

約数和(自身を除く): 21156475420

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 499, 646, 998, 1292, 1615, 1996, 2495, 3230, 4877, 4990, 6460, 8483, 9481, 9754, 9980, 16966, 18962, 19508, 24385, 33932, 37924, 42415, 47405, 48770, 82909, 84830, 92663, 94810, 97540, 161177, 165818, 169660, 185326, 189620, 322354, 331636, 370652, 414545, 463315, 644708, 805885, 829090, 926630, 1575271, 1611770, 1658180, 1853260, 2433623, 3150542, 3223540, 4867246, 6301084, 7876355, 9734492, 12168115, 15752710, 24336230, 31505420, 41371591, 46238837, 48672460, 82743182, 92477674, 165486364, 184955348, 206857955, 231194185, 413715910, 462388370, 786060229, 827431820, 924776740, 1572120458, 3144240916, 3930301145, 7860602290, 15721204580]

約数ペア:

[(1, 15721204580), (2, 7860602290), (4, 3930301145), (5, 3144240916), (10, 1572120458), (17, 924776740), (19, 827431820), (20, 786060229), (34, 462388370), (38, 413715910), (68, 231194185), (76, 206857955), (85, 184955348), (95, 165486364), (170, 92477674), (190, 82743182), (323, 48672460), (340, 46238837), (380, 41371591), (499, 31505420), (646, 24336230), (998, 15752710), (1292, 12168115), (1615, 9734492), (1996, 7876355), (2495, 6301084), (3230, 4867246), (4877, 3223540), (4990, 3150542), (6460, 2433623), (8483, 1853260), (9481, 1658180), (9754, 1611770), (9980, 1575271), (16966, 926630), (18962, 829090), (19508, 805885), (24385, 644708), (33932, 463315), (37924, 414545), (42415, 370652), (47405, 331636), (48770, 322354), (82909, 189620), (84830, 185326), (92663, 169660), (94810, 165818), (97540, 161177)]