68682020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 160675704

約数和(自身を除く): 91993684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 121, 202, 220, 242, 281, 404, 484, 505, 562, 605, 1010, 1111, 1124, 1210, 1405, 2020, 2222, 2420, 2810, 3091, 4444, 5555, 5620, 6182, 11110, 12221, 12364, 15455, 22220, 24442, 28381, 30910, 34001, 48884, 56762, 61105, 61820, 68002, 113524, 122210, 136004, 141905, 170005, 244420, 283810, 312191, 340010, 567620, 624382, 680020, 1248764, 1560955, 3121910, 3434101, 6243820, 6868202, 13736404, 17170505, 34341010, 68682020]

約数ペア:

[(1, 68682020), (2, 34341010), (4, 17170505), (5, 13736404), (10, 6868202), (11, 6243820), (20, 3434101), (22, 3121910), (44, 1560955), (55, 1248764), (101, 680020), (110, 624382), (121, 567620), (202, 340010), (220, 312191), (242, 283810), (281, 244420), (404, 170005), (484, 141905), (505, 136004), (562, 122210), (605, 113524), (1010, 68002), (1111, 61820), (1124, 61105), (1210, 56762), (1405, 48884), (2020, 34001), (2222, 30910), (2420, 28381), (2810, 24442), (3091, 22220), (4444, 15455), (5555, 12364), (5620, 12221), (6182, 11110)]