28331625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 55351296

約数和(自身を除く): 27019671

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 125, 129, 175, 215, 251, 301, 375, 525, 645, 753, 875, 903, 1075, 1255, 1505, 1757, 2625, 3225, 3765, 4515, 5271, 5375, 6275, 7525, 8785, 10793, 16125, 18825, 22575, 26355, 31375, 32379, 37625, 43925, 53965, 75551, 94125, 112875, 131775, 161895, 219625, 226653, 269825, 377755, 658875, 809475, 1133265, 1349125, 1888775, 4047375, 5666325, 9443875, 28331625]

約数ペア:

[(1, 28331625), (3, 9443875), (5, 5666325), (7, 4047375), (15, 1888775), (21, 1349125), (25, 1133265), (35, 809475), (43, 658875), (75, 377755), (105, 269825), (125, 226653), (129, 219625), (175, 161895), (215, 131775), (251, 112875), (301, 94125), (375, 75551), (525, 53965), (645, 43925), (753, 37625), (875, 32379), (903, 31375), (1075, 26355), (1255, 22575), (1505, 18825), (1757, 16125), (2625, 10793), (3225, 8785), (3765, 7525), (4515, 6275), (5271, 5375)]