68870840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55541}}^1$

素因数の和:55583

約数の個数: 32

約数和(自身を含む): 159960960

約数和(自身を除く): 91090120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 55541, 111082, 222164, 277705, 444328, 555410, 1110820, 1721771, 2221640, 3443542, 6887084, 8608855, 13774168, 17217710, 34435420, 68870840]

約数ペア:

[(1, 68870840), (2, 34435420), (4, 17217710), (5, 13774168), (8, 8608855), (10, 6887084), (20, 3443542), (31, 2221640), (40, 1721771), (62, 1110820), (124, 555410), (155, 444328), (248, 277705), (310, 222164), (620, 111082), (1240, 55541)]