207978525

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 387189504

約数和(自身を除く): 179210979

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 71, 75, 141, 213, 225, 235, 277, 355, 423, 639, 705, 831, 1065, 1175, 1385, 1775, 2115, 2493, 3195, 3337, 3525, 4155, 5325, 6925, 10011, 10575, 12465, 13019, 15975, 16685, 19667, 20775, 30033, 39057, 50055, 59001, 62325, 65095, 83425, 98335, 117171, 150165, 177003, 195285, 250275, 295005, 325475, 491675, 585855, 750825, 885015, 924349, 976425, 1475025, 2773047, 2929275, 4425075, 4621745, 8319141, 13865235, 23108725, 41595705, 69326175, 207978525]

約数ペア:

[(1, 207978525), (3, 69326175), (5, 41595705), (9, 23108725), (15, 13865235), (25, 8319141), (45, 4621745), (47, 4425075), (71, 2929275), (75, 2773047), (141, 1475025), (213, 976425), (225, 924349), (235, 885015), (277, 750825), (355, 585855), (423, 491675), (639, 325475), (705, 295005), (831, 250275), (1065, 195285), (1175, 177003), (1385, 150165), (1775, 117171), (2115, 98335), (2493, 83425), (3195, 65095), (3337, 62325), (3525, 59001), (4155, 50055), (5325, 39057), (6925, 30033), (10011, 20775), (10575, 19667), (12465, 16685), (13019, 15975)]