78253125

素因数分解:

$3^1\times 5^5\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 138366144

約数和(自身を除く): 60113019

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 491, 625, 1275, 1473, 1875, 2125, 2455, 3125, 6375, 7365, 8347, 9375, 10625, 12275, 25041, 31875, 36825, 41735, 53125, 61375, 125205, 159375, 184125, 208675, 306875, 626025, 920625, 1043375, 1534375, 3130125, 4603125, 5216875, 15650625, 26084375, 78253125]

約数ペア:

[(1, 78253125), (3, 26084375), (5, 15650625), (15, 5216875), (17, 4603125), (25, 3130125), (51, 1534375), (75, 1043375), (85, 920625), (125, 626025), (255, 306875), (375, 208675), (425, 184125), (491, 159375), (625, 125205), (1275, 61375), (1473, 53125), (1875, 41735), (2125, 36825), (2455, 31875), (3125, 25041), (6375, 12275), (7365, 10625), (8347, 9375)]