40282400

素因数分解:

$2^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1234

約数の個数: 72

約数和(自身を含む): 100712304

約数和(自身を除く): 60429904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 80, 86, 100, 160, 172, 200, 215, 344, 400, 430, 688, 800, 860, 1075, 1171, 1376, 1720, 2150, 2342, 3440, 4300, 4684, 5855, 6880, 8600, 9368, 11710, 17200, 18736, 23420, 29275, 34400, 37472, 46840, 50353, 58550, 93680, 100706, 117100, 187360, 201412, 234200, 251765, 402824, 468400, 503530, 805648, 936800, 1007060, 1258825, 1611296, 2014120, 2517650, 4028240, 5035300, 8056480, 10070600, 20141200, 40282400]

約数ペア:

[(1, 40282400), (2, 20141200), (4, 10070600), (5, 8056480), (8, 5035300), (10, 4028240), (16, 2517650), (20, 2014120), (25, 1611296), (32, 1258825), (40, 1007060), (43, 936800), (50, 805648), (80, 503530), (86, 468400), (100, 402824), (160, 251765), (172, 234200), (200, 201412), (215, 187360), (344, 117100), (400, 100706), (430, 93680), (688, 58550), (800, 50353), (860, 46840), (1075, 37472), (1171, 34400), (1376, 29275), (1720, 23420), (2150, 18736), (2342, 17200), (3440, 11710), (4300, 9368), (4684, 8600), (5855, 6880)]