12381400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 29730240

約数和(自身を除く): 17348840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 1997, 3100, 3994, 6200, 7988, 9985, 15976, 19970, 39940, 49925, 61907, 79880, 99850, 123814, 199700, 247628, 309535, 399400, 495256, 619070, 1238140, 1547675, 2476280, 3095350, 6190700, 12381400]

約数ペア:

[(1, 12381400), (2, 6190700), (4, 3095350), (5, 2476280), (8, 1547675), (10, 1238140), (20, 619070), (25, 495256), (31, 399400), (40, 309535), (50, 247628), (62, 199700), (100, 123814), (124, 99850), (155, 79880), (200, 61907), (248, 49925), (310, 39940), (620, 19970), (775, 15976), (1240, 9985), (1550, 7988), (1997, 6200), (3100, 3994)]