20942025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 38164224

約数和(自身を除く): 17222199

約数列:

[1, 3, 5, 13, 15, 25, 39, 47, 65, 75, 141, 195, 235, 325, 457, 611, 705, 975, 1175, 1371, 1833, 2285, 3055, 3525, 5941, 6855, 9165, 11425, 15275, 17823, 21479, 29705, 34275, 45825, 64437, 89115, 107395, 148525, 279227, 322185, 445575, 536975, 837681, 1396135, 1610925, 4188405, 6980675, 20942025]

約数ペア:

[(1, 20942025), (3, 6980675), (5, 4188405), (13, 1610925), (15, 1396135), (25, 837681), (39, 536975), (47, 445575), (65, 322185), (75, 279227), (141, 148525), (195, 107395), (235, 89115), (325, 64437), (457, 45825), (611, 34275), (705, 29705), (975, 21479), (1175, 17823), (1371, 15275), (1833, 11425), (2285, 9165), (3055, 6855), (3525, 5941)]