67640450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 72

約数和(自身を含む): 138872064

約数和(自身を除く): 71231614

約数列:

[1, 2, 5, 10, 17, 25, 31, 34, 50, 62, 85, 151, 155, 170, 289, 302, 310, 425, 527, 578, 755, 775, 850, 1054, 1445, 1510, 1550, 2567, 2635, 2890, 3775, 4681, 5134, 5270, 7225, 7550, 8959, 9362, 12835, 13175, 14450, 17918, 23405, 25670, 26350, 43639, 44795, 46810, 64175, 79577, 87278, 89590, 117025, 128350, 159154, 218195, 223975, 234050, 397885, 436390, 447950, 795770, 1090975, 1352809, 1989425, 2181950, 2705618, 3978850, 6764045, 13528090, 33820225, 67640450]

約数ペア:

[(1, 67640450), (2, 33820225), (5, 13528090), (10, 6764045), (17, 3978850), (25, 2705618), (31, 2181950), (34, 1989425), (50, 1352809), (62, 1090975), (85, 795770), (151, 447950), (155, 436390), (170, 397885), (289, 234050), (302, 223975), (310, 218195), (425, 159154), (527, 128350), (578, 117025), (755, 89590), (775, 87278), (850, 79577), (1054, 64175), (1445, 46810), (1510, 44795), (1550, 43639), (2567, 26350), (2635, 25670), (2890, 23405), (3775, 17918), (4681, 14450), (5134, 13175), (5270, 12835), (7225, 9362), (7550, 8959)]