127780760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103049}}^1$

素因数の和:103091

約数の個数: 32

約数和(自身を含む): 296784000

約数和(自身を除く): 169003240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 103049, 206098, 412196, 515245, 824392, 1030490, 2060980, 3194519, 4121960, 6389038, 12778076, 15972595, 25556152, 31945190, 63890380, 127780760]

約数ペア:

[(1, 127780760), (2, 63890380), (4, 31945190), (5, 25556152), (8, 15972595), (10, 12778076), (20, 6389038), (31, 4121960), (40, 3194519), (62, 2060980), (124, 1030490), (155, 824392), (248, 515245), (310, 412196), (620, 206098), (1240, 103049)]