1520372980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{5521}}^1$

素因数の和:5825

約数の個数: 72

約数和(自身を含む): 3727946376

約数和(自身を除く): 2207573396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 281, 490, 562, 980, 1124, 1405, 1967, 2810, 3934, 5521, 5620, 7868, 9835, 11042, 13769, 19670, 22084, 27538, 27605, 38647, 39340, 55076, 55210, 68845, 77294, 110420, 137690, 154588, 193235, 270529, 275380, 386470, 541058, 772940, 1082116, 1352645, 1551401, 2705290, 3102802, 5410580, 6205604, 7757005, 10859807, 15514010, 21719614, 31028020, 43439228, 54299035, 76018649, 108598070, 152037298, 217196140, 304074596, 380093245, 760186490, 1520372980]

約数ペア:

[(1, 1520372980), (2, 760186490), (4, 380093245), (5, 304074596), (7, 217196140), (10, 152037298), (14, 108598070), (20, 76018649), (28, 54299035), (35, 43439228), (49, 31028020), (70, 21719614), (98, 15514010), (140, 10859807), (196, 7757005), (245, 6205604), (281, 5410580), (490, 3102802), (562, 2705290), (980, 1551401), (1124, 1352645), (1405, 1082116), (1967, 772940), (2810, 541058), (3934, 386470), (5521, 275380), (5620, 270529), (7868, 193235), (9835, 154588), (11042, 137690), (13769, 110420), (19670, 77294), (22084, 68845), (27538, 55210), (27605, 55076), (38647, 39340)]