66400760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53549}}^1$

素因数の和:53591

約数の個数: 32

約数和(自身を含む): 154224000

約数和(自身を除く): 87823240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 53549, 107098, 214196, 267745, 428392, 535490, 1070980, 1660019, 2141960, 3320038, 6640076, 8300095, 13280152, 16600190, 33200380, 66400760]

約数ペア:

[(1, 66400760), (2, 33200380), (4, 16600190), (5, 13280152), (8, 8300095), (10, 6640076), (20, 3320038), (31, 2141960), (40, 1660019), (62, 1070980), (124, 535490), (155, 428392), (248, 267745), (310, 214196), (620, 107098), (1240, 53549)]