200420440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1621}}^1$

素因数の和:1924

約数の個数: 64

約数和(自身を含む): 493996320

約数和(自身を除く): 293575880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 281, 440, 562, 1124, 1405, 1621, 2248, 2810, 3091, 3242, 5620, 6182, 6484, 8105, 11240, 12364, 12968, 15455, 16210, 17831, 24728, 30910, 32420, 35662, 61820, 64840, 71324, 89155, 123640, 142648, 178310, 356620, 455501, 713240, 911002, 1822004, 2277505, 3644008, 4555010, 5010511, 9110020, 10021022, 18220040, 20042044, 25052555, 40084088, 50105110, 100210220, 200420440]

約数ペア:

[(1, 200420440), (2, 100210220), (4, 50105110), (5, 40084088), (8, 25052555), (10, 20042044), (11, 18220040), (20, 10021022), (22, 9110020), (40, 5010511), (44, 4555010), (55, 3644008), (88, 2277505), (110, 1822004), (220, 911002), (281, 713240), (440, 455501), (562, 356620), (1124, 178310), (1405, 142648), (1621, 123640), (2248, 89155), (2810, 71324), (3091, 64840), (3242, 61820), (5620, 35662), (6182, 32420), (6484, 30910), (8105, 24728), (11240, 17831), (12364, 16210), (12968, 15455)]