21890100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 63933408

約数和(自身を除く): 42043308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 131, 150, 262, 300, 393, 524, 557, 655, 786, 1114, 1310, 1572, 1671, 1965, 2228, 2620, 2785, 3275, 3342, 3930, 5570, 6550, 6684, 7860, 8355, 9825, 11140, 13100, 13925, 16710, 19650, 27850, 33420, 39300, 41775, 55700, 72967, 83550, 145934, 167100, 218901, 291868, 364835, 437802, 729670, 875604, 1094505, 1459340, 1824175, 2189010, 3648350, 4378020, 5472525, 7296700, 10945050, 21890100]

約数ペア:

[(1, 21890100), (2, 10945050), (3, 7296700), (4, 5472525), (5, 4378020), (6, 3648350), (10, 2189010), (12, 1824175), (15, 1459340), (20, 1094505), (25, 875604), (30, 729670), (50, 437802), (60, 364835), (75, 291868), (100, 218901), (131, 167100), (150, 145934), (262, 83550), (300, 72967), (393, 55700), (524, 41775), (557, 39300), (655, 33420), (786, 27850), (1114, 19650), (1310, 16710), (1572, 13925), (1671, 13100), (1965, 11140), (2228, 9825), (2620, 8355), (2785, 7860), (3275, 6684), (3342, 6550), (3930, 5570)]