15990625

素因数分解:

$5^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 48

約数和(自身を含む): 24748416

約数和(自身を除く): 8757791

約数列:

[1, 5, 7, 17, 25, 35, 43, 85, 119, 125, 175, 215, 301, 425, 595, 625, 731, 875, 1075, 1505, 2125, 2975, 3125, 3655, 4375, 5117, 5375, 7525, 10625, 14875, 18275, 21875, 25585, 26875, 37625, 53125, 74375, 91375, 127925, 134375, 188125, 371875, 456875, 639625, 940625, 2284375, 3198125, 15990625]

約数ペア:

[(1, 15990625), (5, 3198125), (7, 2284375), (17, 940625), (25, 639625), (35, 456875), (43, 371875), (85, 188125), (119, 134375), (125, 127925), (175, 91375), (215, 74375), (301, 53125), (425, 37625), (595, 26875), (625, 25585), (731, 21875), (875, 18275), (1075, 14875), (1505, 10625), (2125, 7525), (2975, 5375), (3125, 5117), (3655, 4375)]