20164579715

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^2\times {\mathrm{563}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 29587090320

約数和(自身を除く): 9422510605

約数列:

[1, 5, 7, 29, 35, 49, 71, 145, 203, 245, 355, 497, 563, 1015, 1421, 2059, 2485, 2815, 3479, 3941, 5041, 7105, 10295, 14413, 16327, 17395, 19705, 25205, 27587, 35287, 39973, 72065, 81635, 100891, 114289, 137935, 146189, 176435, 199865, 247009, 279811, 504455, 571445, 730945, 800023, 1023323, 1159217, 1235045, 1399055, 1958677, 2838083, 4000115, 5116615, 5796085, 7163261, 8114519, 9793385, 14190415, 19866581, 35816305, 40572595, 56801633, 82304407, 99332905, 139066067, 284008165, 411522035, 576130849, 695330335, 2880654245, 4032915943, 20164579715]

約数ペア:

[(1, 20164579715), (5, 4032915943), (7, 2880654245), (29, 695330335), (35, 576130849), (49, 411522035), (71, 284008165), (145, 139066067), (203, 99332905), (245, 82304407), (355, 56801633), (497, 40572595), (563, 35816305), (1015, 19866581), (1421, 14190415), (2059, 9793385), (2485, 8114519), (2815, 7163261), (3479, 5796085), (3941, 5116615), (5041, 4000115), (7105, 2838083), (10295, 1958677), (14413, 1399055), (16327, 1235045), (17395, 1159217), (19705, 1023323), (25205, 800023), (27587, 730945), (35287, 571445), (39973, 504455), (72065, 279811), (81635, 247009), (100891, 199865), (114289, 176435), (137935, 146189)]