19880625

素因数分解:

$3^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:507

約数の個数: 40

約数和(自身を含む): 34638912

約数和(自身を除く): 14758287

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 345, 375, 461, 575, 625, 1383, 1725, 1875, 2305, 2875, 6915, 8625, 10603, 11525, 14375, 31809, 34575, 43125, 53015, 57625, 159045, 172875, 265075, 288125, 795225, 864375, 1325375, 3976125, 6626875, 19880625]

約数ペア:

[(1, 19880625), (3, 6626875), (5, 3976125), (15, 1325375), (23, 864375), (25, 795225), (69, 288125), (75, 265075), (115, 172875), (125, 159045), (345, 57625), (375, 53015), (461, 43125), (575, 34575), (625, 31809), (1383, 14375), (1725, 11525), (1875, 10603), (2305, 8625), (2875, 6915)]