191361880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{78427}}^1$

素因数の和:78499

約数の個数: 32

約数和(自身を含む): 437628240

約数和(自身を除く): 246266360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 78427, 156854, 313708, 392135, 627416, 784270, 1568540, 3137080, 4784047, 9568094, 19136188, 23920235, 38272376, 47840470, 95680940, 191361880]

約数ペア:

[(1, 191361880), (2, 95680940), (4, 47840470), (5, 38272376), (8, 23920235), (10, 19136188), (20, 9568094), (40, 4784047), (61, 3137080), (122, 1568540), (244, 784270), (305, 627416), (488, 392135), (610, 313708), (1220, 156854), (2440, 78427)]