65439760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26387}}^1$

素因数の和:26431

約数の個数: 40

約数和(自身を含む): 157061376

約数和(自身を除く): 91621616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26387, 52774, 105548, 131935, 211096, 263870, 422192, 527740, 817997, 1055480, 1635994, 2110960, 3271988, 4089985, 6543976, 8179970, 13087952, 16359940, 32719880, 65439760]

約数ペア:

[(1, 65439760), (2, 32719880), (4, 16359940), (5, 13087952), (8, 8179970), (10, 6543976), (16, 4089985), (20, 3271988), (31, 2110960), (40, 1635994), (62, 1055480), (80, 817997), (124, 527740), (155, 422192), (248, 263870), (310, 211096), (496, 131935), (620, 105548), (1240, 52774), (2480, 26387)]