30540980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 68040000

約数和(自身を除く): 37499020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 449, 716, 895, 898, 1790, 1796, 2245, 3401, 3580, 4490, 6802, 8531, 8980, 13604, 17005, 17062, 34010, 34124, 42655, 68020, 80371, 85310, 160742, 170620, 321484, 401855, 803710, 1527049, 1607420, 3054098, 6108196, 7635245, 15270490, 30540980]

約数ペア:

[(1, 30540980), (2, 15270490), (4, 7635245), (5, 6108196), (10, 3054098), (19, 1607420), (20, 1527049), (38, 803710), (76, 401855), (95, 321484), (179, 170620), (190, 160742), (358, 85310), (380, 80371), (449, 68020), (716, 42655), (895, 34124), (898, 34010), (1790, 17062), (1796, 17005), (2245, 13604), (3401, 8980), (3580, 8531), (4490, 6802)]