68855960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55529}}^1$

素因数の和:55571

約数の個数: 32

約数和(自身を含む): 159926400

約数和(自身を除く): 91070440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 55529, 111058, 222116, 277645, 444232, 555290, 1110580, 1721399, 2221160, 3442798, 6885596, 8606995, 13771192, 17213990, 34427980, 68855960]

約数ペア:

[(1, 68855960), (2, 34427980), (4, 17213990), (5, 13771192), (8, 8606995), (10, 6885596), (20, 3442798), (31, 2221160), (40, 1721399), (62, 1110580), (124, 555290), (155, 444232), (248, 277645), (310, 222116), (620, 111058), (1240, 55529)]