64959880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{52387}}^1$

素因数の和:52429

約数の個数: 32

約数和(自身を含む): 150877440

約数和(自身を除く): 85917560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 52387, 104774, 209548, 261935, 419096, 523870, 1047740, 1623997, 2095480, 3247994, 6495988, 8119985, 12991976, 16239970, 32479940, 64959880]

約数ペア:

[(1, 64959880), (2, 32479940), (4, 16239970), (5, 12991976), (8, 8119985), (10, 6495988), (20, 3247994), (31, 2095480), (40, 1623997), (62, 1047740), (124, 523870), (155, 419096), (248, 261935), (310, 209548), (620, 104774), (1240, 52387)]