20245736440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{273739}}^1$

素因数の和:273836

約数の個数: 48

約数和(自身を含む): 46637083800

約数和(自身を除く): 26391347360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 3698, 7396, 9245, 14792, 18490, 36980, 73960, 273739, 547478, 1094956, 1368695, 2189912, 2737390, 5474780, 10949560, 11770777, 23541554, 47083108, 58853885, 94166216, 117707770, 235415540, 470831080, 506143411, 1012286822, 2024573644, 2530717055, 4049147288, 5061434110, 10122868220, 20245736440]

約数ペア:

[(1, 20245736440), (2, 10122868220), (4, 5061434110), (5, 4049147288), (8, 2530717055), (10, 2024573644), (20, 1012286822), (40, 506143411), (43, 470831080), (86, 235415540), (172, 117707770), (215, 94166216), (344, 58853885), (430, 47083108), (860, 23541554), (1720, 11770777), (1849, 10949560), (3698, 5474780), (7396, 2737390), (9245, 2189912), (14792, 1368695), (18490, 1094956), (36980, 547478), (73960, 273739)]