102900820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 240443784

約数和(自身を除く): 137542964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 121, 202, 220, 242, 404, 421, 484, 505, 605, 842, 1010, 1111, 1210, 1684, 2020, 2105, 2222, 2420, 4210, 4444, 4631, 5555, 8420, 9262, 11110, 12221, 18524, 22220, 23155, 24442, 42521, 46310, 48884, 50941, 61105, 85042, 92620, 101882, 122210, 170084, 203764, 212605, 244420, 254705, 425210, 467731, 509410, 850420, 935462, 1018820, 1870924, 2338655, 4677310, 5145041, 9354620, 10290082, 20580164, 25725205, 51450410, 102900820]

約数ペア:

[(1, 102900820), (2, 51450410), (4, 25725205), (5, 20580164), (10, 10290082), (11, 9354620), (20, 5145041), (22, 4677310), (44, 2338655), (55, 1870924), (101, 1018820), (110, 935462), (121, 850420), (202, 509410), (220, 467731), (242, 425210), (404, 254705), (421, 244420), (484, 212605), (505, 203764), (605, 170084), (842, 122210), (1010, 101882), (1111, 92620), (1210, 85042), (1684, 61105), (2020, 50941), (2105, 48884), (2222, 46310), (2420, 42521), (4210, 24442), (4444, 23155), (4631, 22220), (5555, 18524), (8420, 12221), (9262, 11110)]