12909640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 18194360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 359, 580, 620, 718, 899, 1160, 1240, 1436, 1795, 1798, 2872, 3590, 3596, 4495, 7180, 7192, 8990, 10411, 11129, 14360, 17980, 20822, 22258, 35960, 41644, 44516, 52055, 55645, 83288, 89032, 104110, 111290, 208220, 222580, 322741, 416440, 445160, 645482, 1290964, 1613705, 2581928, 3227410, 6454820, 12909640]

約数ペア:

[(1, 12909640), (2, 6454820), (4, 3227410), (5, 2581928), (8, 1613705), (10, 1290964), (20, 645482), (29, 445160), (31, 416440), (40, 322741), (58, 222580), (62, 208220), (116, 111290), (124, 104110), (145, 89032), (155, 83288), (232, 55645), (248, 52055), (290, 44516), (310, 41644), (359, 35960), (580, 22258), (620, 20822), (718, 17980), (899, 14360), (1160, 11129), (1240, 10411), (1436, 8990), (1795, 7192), (1798, 7180), (2872, 4495), (3590, 3596)]