12979700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 29998080

約数和(自身を除く): 17018380

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 53, 62, 79, 100, 106, 124, 155, 158, 212, 265, 310, 316, 395, 530, 620, 775, 790, 1060, 1325, 1550, 1580, 1643, 1975, 2449, 2650, 3100, 3286, 3950, 4187, 4898, 5300, 6572, 7900, 8215, 8374, 9796, 12245, 16430, 16748, 20935, 24490, 32860, 41075, 41870, 48980, 61225, 82150, 83740, 104675, 122450, 129797, 164300, 209350, 244900, 259594, 418700, 519188, 648985, 1297970, 2595940, 3244925, 6489850, 12979700]

約数ペア:

[(1, 12979700), (2, 6489850), (4, 3244925), (5, 2595940), (10, 1297970), (20, 648985), (25, 519188), (31, 418700), (50, 259594), (53, 244900), (62, 209350), (79, 164300), (100, 129797), (106, 122450), (124, 104675), (155, 83740), (158, 82150), (212, 61225), (265, 48980), (310, 41870), (316, 41075), (395, 32860), (530, 24490), (620, 20935), (775, 16748), (790, 16430), (1060, 12245), (1325, 9796), (1550, 8374), (1580, 8215), (1643, 7900), (1975, 6572), (2449, 5300), (2650, 4898), (3100, 4187), (3286, 3950)]