28197650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 58817664

約数和(自身を除く): 30620014

約数列:

[1, 2, 5, 10, 13, 25, 26, 47, 50, 65, 71, 94, 130, 142, 169, 235, 325, 338, 355, 470, 611, 650, 710, 845, 923, 1175, 1222, 1690, 1775, 1846, 2350, 3055, 3337, 3550, 4225, 4615, 6110, 6674, 7943, 8450, 9230, 11999, 15275, 15886, 16685, 23075, 23998, 30550, 33370, 39715, 43381, 46150, 59995, 79430, 83425, 86762, 119990, 166850, 198575, 216905, 299975, 397150, 433810, 563953, 599950, 1084525, 1127906, 2169050, 2819765, 5639530, 14098825, 28197650]

約数ペア:

[(1, 28197650), (2, 14098825), (5, 5639530), (10, 2819765), (13, 2169050), (25, 1127906), (26, 1084525), (47, 599950), (50, 563953), (65, 433810), (71, 397150), (94, 299975), (130, 216905), (142, 198575), (169, 166850), (235, 119990), (325, 86762), (338, 83425), (355, 79430), (470, 59995), (611, 46150), (650, 43381), (710, 39715), (845, 33370), (923, 30550), (1175, 23998), (1222, 23075), (1690, 16685), (1775, 15886), (1846, 15275), (2350, 11999), (3055, 9230), (3337, 8450), (3550, 7943), (4225, 6674), (4615, 6110)]