18720400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2753}}^1$

素因数の和:2788

約数の個数: 60

約数和(自身を含む): 47638692

約数和(自身を除く): 28918292

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 2753, 3400, 5506, 6800, 11012, 13765, 22024, 27530, 44048, 46801, 55060, 68825, 93602, 110120, 137650, 187204, 220240, 234005, 275300, 374408, 468010, 550600, 748816, 936020, 1101200, 1170025, 1872040, 2340050, 3744080, 4680100, 9360200, 18720400]

約数ペア:

[(1, 18720400), (2, 9360200), (4, 4680100), (5, 3744080), (8, 2340050), (10, 1872040), (16, 1170025), (17, 1101200), (20, 936020), (25, 748816), (34, 550600), (40, 468010), (50, 374408), (68, 275300), (80, 234005), (85, 220240), (100, 187204), (136, 137650), (170, 110120), (200, 93602), (272, 68825), (340, 55060), (400, 46801), (425, 44048), (680, 27530), (850, 22024), (1360, 13765), (1700, 11012), (2753, 6800), (3400, 5506)]