154767500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2052

約数の個数: 60

約数和(自身を含む): 349538112

約数和(自身を除く): 194770612

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 625, 775, 1250, 1550, 1997, 2500, 3100, 3875, 3994, 7750, 7988, 9985, 15500, 19375, 19970, 38750, 39940, 49925, 61907, 77500, 99850, 123814, 199700, 247628, 249625, 309535, 499250, 619070, 998500, 1238140, 1248125, 1547675, 2496250, 3095350, 4992500, 6190700, 7738375, 15476750, 30953500, 38691875, 77383750, 154767500]

約数ペア:

[(1, 154767500), (2, 77383750), (4, 38691875), (5, 30953500), (10, 15476750), (20, 7738375), (25, 6190700), (31, 4992500), (50, 3095350), (62, 2496250), (100, 1547675), (124, 1248125), (125, 1238140), (155, 998500), (250, 619070), (310, 499250), (500, 309535), (620, 249625), (625, 247628), (775, 199700), (1250, 123814), (1550, 99850), (1997, 77500), (2500, 61907), (3100, 49925), (3875, 39940), (3994, 38750), (7750, 19970), (7988, 19375), (9985, 15500)]