31678280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 74995200

約数和(自身を除く): 43316920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 118, 124, 155, 236, 248, 295, 310, 433, 472, 590, 620, 866, 1180, 1240, 1732, 1829, 2165, 2360, 3464, 3658, 4330, 7316, 8660, 9145, 13423, 14632, 17320, 18290, 25547, 26846, 36580, 51094, 53692, 67115, 73160, 102188, 107384, 127735, 134230, 204376, 255470, 268460, 510940, 536920, 791957, 1021880, 1583914, 3167828, 3959785, 6335656, 7919570, 15839140, 31678280]

約数ペア:

[(1, 31678280), (2, 15839140), (4, 7919570), (5, 6335656), (8, 3959785), (10, 3167828), (20, 1583914), (31, 1021880), (40, 791957), (59, 536920), (62, 510940), (118, 268460), (124, 255470), (155, 204376), (236, 134230), (248, 127735), (295, 107384), (310, 102188), (433, 73160), (472, 67115), (590, 53692), (620, 51094), (866, 36580), (1180, 26846), (1240, 25547), (1732, 18290), (1829, 17320), (2165, 14632), (2360, 13423), (3464, 9145), (3658, 8660), (4330, 7316)]