1285321700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{859}}^1\times {\mathrm{1151}}^1$

素因数の和:2037

約数の個数: 72

約数和(自身を含む): 3009807360

約数和(自身を除く): 1724485660

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 859, 1151, 1300, 1718, 2302, 3436, 4295, 4604, 5755, 8590, 11167, 11510, 14963, 17180, 21475, 22334, 23020, 28775, 29926, 42950, 44668, 55835, 57550, 59852, 74815, 85900, 111670, 115100, 149630, 223340, 279175, 299260, 374075, 558350, 748150, 988709, 1116700, 1496300, 1977418, 3954836, 4943545, 9887090, 12853217, 19774180, 24717725, 25706434, 49435450, 51412868, 64266085, 98870900, 128532170, 257064340, 321330425, 642660850, 1285321700]

約数ペア:

[(1, 1285321700), (2, 642660850), (4, 321330425), (5, 257064340), (10, 128532170), (13, 98870900), (20, 64266085), (25, 51412868), (26, 49435450), (50, 25706434), (52, 24717725), (65, 19774180), (100, 12853217), (130, 9887090), (260, 4943545), (325, 3954836), (650, 1977418), (859, 1496300), (1151, 1116700), (1300, 988709), (1718, 748150), (2302, 558350), (3436, 374075), (4295, 299260), (4604, 279175), (5755, 223340), (8590, 149630), (11167, 115100), (11510, 111670), (14963, 85900), (17180, 74815), (21475, 59852), (22334, 57550), (23020, 55835), (28775, 44668), (29926, 42950)]