139117420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:635

約数の個数: 72

約数和(自身を含む): 320967360

約数和(自身を除く): 181849940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 169, 260, 316, 338, 395, 521, 676, 790, 845, 1027, 1042, 1580, 1690, 2054, 2084, 2605, 3380, 4108, 5135, 5210, 6773, 10270, 10420, 13351, 13546, 20540, 26702, 27092, 33865, 41159, 53404, 66755, 67730, 82318, 88049, 133510, 135460, 164636, 176098, 205795, 267020, 352196, 411590, 440245, 535067, 823180, 880490, 1070134, 1760980, 2140268, 2675335, 5350670, 6955871, 10701340, 13911742, 27823484, 34779355, 69558710, 139117420]

約数ペア:

[(1, 139117420), (2, 69558710), (4, 34779355), (5, 27823484), (10, 13911742), (13, 10701340), (20, 6955871), (26, 5350670), (52, 2675335), (65, 2140268), (79, 1760980), (130, 1070134), (158, 880490), (169, 823180), (260, 535067), (316, 440245), (338, 411590), (395, 352196), (521, 267020), (676, 205795), (790, 176098), (845, 164636), (1027, 135460), (1042, 133510), (1580, 88049), (1690, 82318), (2054, 67730), (2084, 66755), (2605, 53404), (3380, 41159), (4108, 33865), (5135, 27092), (5210, 26702), (6773, 20540), (10270, 13546), (10420, 13351)]