20162025

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 39877656

約数和(自身を除く): 19715631

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 61, 65, 75, 113, 117, 183, 195, 225, 305, 325, 339, 549, 565, 585, 793, 915, 975, 1017, 1469, 1525, 1695, 2379, 2745, 2825, 2925, 3965, 4407, 4575, 5085, 6893, 7137, 7345, 8475, 11895, 13221, 13725, 19825, 20679, 22035, 25425, 34465, 35685, 36725, 59475, 62037, 66105, 89609, 103395, 110175, 172325, 178425, 268827, 310185, 330525, 448045, 516975, 806481, 1344135, 1550925, 2240225, 4032405, 6720675, 20162025]

約数ペア:

[(1, 20162025), (3, 6720675), (5, 4032405), (9, 2240225), (13, 1550925), (15, 1344135), (25, 806481), (39, 516975), (45, 448045), (61, 330525), (65, 310185), (75, 268827), (113, 178425), (117, 172325), (183, 110175), (195, 103395), (225, 89609), (305, 66105), (325, 62037), (339, 59475), (549, 36725), (565, 35685), (585, 34465), (793, 25425), (915, 22035), (975, 20679), (1017, 19825), (1469, 13725), (1525, 13221), (1695, 11895), (2379, 8475), (2745, 7345), (2825, 7137), (2925, 6893), (3965, 5085), (4407, 4575)]