28905880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19531}}^1$

素因数の和:19579

約数の個数: 32

約数和(自身を含む): 66799440

約数和(自身を除く): 37893560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 19531, 39062, 78124, 97655, 156248, 195310, 390620, 722647, 781240, 1445294, 2890588, 3613235, 5781176, 7226470, 14452940, 28905880]

約数ペア:

[(1, 28905880), (2, 14452940), (4, 7226470), (5, 5781176), (8, 3613235), (10, 2890588), (20, 1445294), (37, 781240), (40, 722647), (74, 390620), (148, 195310), (185, 156248), (296, 97655), (370, 78124), (740, 39062), (1480, 19531)]