20022075

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 38649312

約数和(自身を除く): 18627237

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 53, 69, 73, 75, 115, 159, 207, 219, 225, 265, 345, 365, 477, 575, 657, 795, 1035, 1095, 1219, 1325, 1679, 1725, 1825, 2385, 3285, 3657, 3869, 3975, 5037, 5175, 5475, 6095, 8395, 10971, 11607, 11925, 15111, 16425, 18285, 19345, 25185, 30475, 34821, 41975, 54855, 58035, 75555, 88987, 91425, 96725, 125925, 174105, 266961, 274275, 290175, 377775, 444935, 800883, 870525, 1334805, 2224675, 4004415, 6674025, 20022075]

約数ペア:

[(1, 20022075), (3, 6674025), (5, 4004415), (9, 2224675), (15, 1334805), (23, 870525), (25, 800883), (45, 444935), (53, 377775), (69, 290175), (73, 274275), (75, 266961), (115, 174105), (159, 125925), (207, 96725), (219, 91425), (225, 88987), (265, 75555), (345, 58035), (365, 54855), (477, 41975), (575, 34821), (657, 30475), (795, 25185), (1035, 19345), (1095, 18285), (1219, 16425), (1325, 15111), (1679, 11925), (1725, 11607), (1825, 10971), (2385, 8395), (3285, 6095), (3657, 5475), (3869, 5175), (3975, 5037)]