409828700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{499}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 916608000

約数和(自身を除く): 506779300

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 191, 215, 382, 430, 499, 764, 860, 955, 998, 1075, 1910, 1996, 2150, 2495, 3820, 4300, 4775, 4990, 8213, 9550, 9980, 12475, 16426, 19100, 21457, 24950, 32852, 41065, 42914, 49900, 82130, 85828, 95309, 107285, 164260, 190618, 205325, 214570, 381236, 410650, 429140, 476545, 536425, 821300, 953090, 1072850, 1906180, 2145700, 2382725, 4098287, 4765450, 8196574, 9530900, 16393148, 20491435, 40982870, 81965740, 102457175, 204914350, 409828700]

約数ペア:

[(1, 409828700), (2, 204914350), (4, 102457175), (5, 81965740), (10, 40982870), (20, 20491435), (25, 16393148), (43, 9530900), (50, 8196574), (86, 4765450), (100, 4098287), (172, 2382725), (191, 2145700), (215, 1906180), (382, 1072850), (430, 953090), (499, 821300), (764, 536425), (860, 476545), (955, 429140), (998, 410650), (1075, 381236), (1910, 214570), (1996, 205325), (2150, 190618), (2495, 164260), (3820, 107285), (4300, 95309), (4775, 85828), (4990, 82130), (8213, 49900), (9550, 42914), (9980, 41065), (12475, 32852), (16426, 24950), (19100, 21457)]