1985144020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1\times {\mathrm{5051}}^1$

素因数の和:5560

約数の個数: 48

約数和(自身を含む): 4275931968

約数和(自身を除く): 2290787948

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 457, 860, 914, 1828, 2285, 4570, 5051, 9140, 10102, 19651, 20204, 25255, 39302, 50510, 78604, 98255, 101020, 196510, 217193, 393020, 434386, 868772, 1085965, 2171930, 2308307, 4343860, 4616614, 9233228, 11541535, 23083070, 46166140, 99257201, 198514402, 397028804, 496286005, 992572010, 1985144020]

約数ペア:

[(1, 1985144020), (2, 992572010), (4, 496286005), (5, 397028804), (10, 198514402), (20, 99257201), (43, 46166140), (86, 23083070), (172, 11541535), (215, 9233228), (430, 4616614), (457, 4343860), (860, 2308307), (914, 2171930), (1828, 1085965), (2285, 868772), (4570, 434386), (5051, 393020), (9140, 217193), (10102, 196510), (19651, 101020), (20204, 98255), (25255, 78604), (39302, 50510)]