20382375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 37844352

約数和(自身を除く): 17461977

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 75, 111, 113, 125, 185, 195, 325, 339, 375, 481, 555, 565, 925, 975, 1443, 1469, 1625, 1695, 2405, 2775, 2825, 4181, 4407, 4625, 4875, 7215, 7345, 8475, 12025, 12543, 13875, 14125, 20905, 22035, 36075, 36725, 42375, 54353, 60125, 62715, 104525, 110175, 163059, 180375, 183625, 271765, 313575, 522625, 550875, 815295, 1358825, 1567875, 4076475, 6794125, 20382375]

約数ペア:

[(1, 20382375), (3, 6794125), (5, 4076475), (13, 1567875), (15, 1358825), (25, 815295), (37, 550875), (39, 522625), (65, 313575), (75, 271765), (111, 183625), (113, 180375), (125, 163059), (185, 110175), (195, 104525), (325, 62715), (339, 60125), (375, 54353), (481, 42375), (555, 36725), (565, 36075), (925, 22035), (975, 20905), (1443, 14125), (1469, 13875), (1625, 12543), (1695, 12025), (2405, 8475), (2775, 7345), (2825, 7215), (4181, 4875), (4407, 4625)]