78906160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31817}}^1$

素因数の和:31861

約数の個数: 40

約数和(自身を含む): 189380736

約数和(自身を除く): 110474576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 31817, 63634, 127268, 159085, 254536, 318170, 509072, 636340, 986327, 1272680, 1972654, 2545360, 3945308, 4931635, 7890616, 9863270, 15781232, 19726540, 39453080, 78906160]

約数ペア:

[(1, 78906160), (2, 39453080), (4, 19726540), (5, 15781232), (8, 9863270), (10, 7890616), (16, 4931635), (20, 3945308), (31, 2545360), (40, 1972654), (62, 1272680), (80, 986327), (124, 636340), (155, 509072), (248, 318170), (310, 254536), (496, 159085), (620, 127268), (1240, 63634), (2480, 31817)]