78612280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63397}}^1$

素因数の和:63439

約数の個数: 32

約数和(自身を含む): 182586240

約数和(自身を除く): 103973960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 63397, 126794, 253588, 316985, 507176, 633970, 1267940, 1965307, 2535880, 3930614, 7861228, 9826535, 15722456, 19653070, 39306140, 78612280]

約数ペア:

[(1, 78612280), (2, 39306140), (4, 19653070), (5, 15722456), (8, 9826535), (10, 7861228), (20, 3930614), (31, 2535880), (40, 1965307), (62, 1267940), (124, 633970), (155, 507176), (248, 316985), (310, 253588), (620, 126794), (1240, 63397)]