51568580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 127466136

約数和(自身を除く): 75897556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 404, 490, 505, 521, 707, 980, 1010, 1042, 1414, 2020, 2084, 2605, 2828, 3535, 3647, 4949, 5210, 7070, 7294, 9898, 10420, 14140, 14588, 18235, 19796, 24745, 25529, 36470, 49490, 51058, 52621, 72940, 98980, 102116, 105242, 127645, 210484, 255290, 263105, 368347, 510580, 526210, 736694, 1052420, 1473388, 1841735, 2578429, 3683470, 5156858, 7366940, 10313716, 12892145, 25784290, 51568580]

約数ペア:

[(1, 51568580), (2, 25784290), (4, 12892145), (5, 10313716), (7, 7366940), (10, 5156858), (14, 3683470), (20, 2578429), (28, 1841735), (35, 1473388), (49, 1052420), (70, 736694), (98, 526210), (101, 510580), (140, 368347), (196, 263105), (202, 255290), (245, 210484), (404, 127645), (490, 105242), (505, 102116), (521, 98980), (707, 72940), (980, 52621), (1010, 51058), (1042, 49490), (1414, 36470), (2020, 25529), (2084, 24745), (2605, 19796), (2828, 18235), (3535, 14588), (3647, 14140), (4949, 10420), (5210, 9898), (7070, 7294)]