20051325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 42556800

約数和(自身を除く): 22505475

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 105, 145, 175, 203, 225, 261, 315, 435, 439, 525, 609, 725, 1015, 1305, 1317, 1575, 1827, 2175, 2195, 3045, 3073, 3951, 5075, 6525, 6585, 9135, 9219, 10975, 12731, 15225, 15365, 19755, 27657, 32925, 38193, 45675, 46095, 63655, 76825, 89117, 98775, 114579, 138285, 190965, 230475, 267351, 318275, 445585, 572895, 691425, 802053, 954825, 1336755, 2227925, 2864475, 4010265, 6683775, 20051325]

約数ペア:

[(1, 20051325), (3, 6683775), (5, 4010265), (7, 2864475), (9, 2227925), (15, 1336755), (21, 954825), (25, 802053), (29, 691425), (35, 572895), (45, 445585), (63, 318275), (75, 267351), (87, 230475), (105, 190965), (145, 138285), (175, 114579), (203, 98775), (225, 89117), (261, 76825), (315, 63655), (435, 46095), (439, 45675), (525, 38193), (609, 32925), (725, 27657), (1015, 19755), (1305, 15365), (1317, 15225), (1575, 12731), (1827, 10975), (2175, 9219), (2195, 9135), (3045, 6585), (3073, 6525), (3951, 5075)]