20461550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 40330752

約数和(自身を除く): 19869202

約数列:

[1, 2, 5, 10, 25, 31, 43, 50, 62, 86, 155, 215, 307, 310, 430, 614, 775, 1075, 1333, 1535, 1550, 2150, 2666, 3070, 6665, 7675, 9517, 13201, 13330, 15350, 19034, 26402, 33325, 47585, 66005, 66650, 95170, 132010, 237925, 330025, 409231, 475850, 660050, 818462, 2046155, 4092310, 10230775, 20461550]

約数ペア:

[(1, 20461550), (2, 10230775), (5, 4092310), (10, 2046155), (25, 818462), (31, 660050), (43, 475850), (50, 409231), (62, 330025), (86, 237925), (155, 132010), (215, 95170), (307, 66650), (310, 66005), (430, 47585), (614, 33325), (775, 26402), (1075, 19034), (1333, 15350), (1535, 13330), (1550, 13201), (2150, 9517), (2666, 7675), (3070, 6665)]