398432800

素因数分解:

$2^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{9397}}^1$

素因数の和:9470

約数の個数: 72

約数和(自身を含む): 991131876

約数和(自身を除く): 592699076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 80, 100, 106, 160, 200, 212, 265, 400, 424, 530, 800, 848, 1060, 1325, 1696, 2120, 2650, 4240, 5300, 8480, 9397, 10600, 18794, 21200, 37588, 42400, 46985, 75176, 93970, 150352, 187940, 234925, 300704, 375880, 469850, 498041, 751760, 939700, 996082, 1503520, 1879400, 1992164, 2490205, 3758800, 3984328, 4980410, 7517600, 7968656, 9960820, 12451025, 15937312, 19921640, 24902050, 39843280, 49804100, 79686560, 99608200, 199216400, 398432800]

約数ペア:

[(1, 398432800), (2, 199216400), (4, 99608200), (5, 79686560), (8, 49804100), (10, 39843280), (16, 24902050), (20, 19921640), (25, 15937312), (32, 12451025), (40, 9960820), (50, 7968656), (53, 7517600), (80, 4980410), (100, 3984328), (106, 3758800), (160, 2490205), (200, 1992164), (212, 1879400), (265, 1503520), (400, 996082), (424, 939700), (530, 751760), (800, 498041), (848, 469850), (1060, 375880), (1325, 300704), (1696, 234925), (2120, 187940), (2650, 150352), (4240, 93970), (5300, 75176), (8480, 46985), (9397, 42400), (10600, 37588), (18794, 21200)]