77940760

素因数分解:

$2^3\times 5^1\times {\mathrm{1948519}}^1$

素因数の和:1948530

約数の個数: 16

約数和(自身を含む): 175366800

約数和(自身を除く): 97426040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1948519, 3897038, 7794076, 9742595, 15588152, 19485190, 38970380, 77940760]

約数ペア:

[(1, 77940760), (2, 38970380), (4, 19485190), (5, 15588152), (8, 9742595), (10, 7794076), (20, 3897038), (40, 1948519)]