128423080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103567}}^1$

素因数の和:103609

約数の個数: 32

約数和(自身を含む): 298275840

約数和(自身を除く): 169852760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 103567, 207134, 414268, 517835, 828536, 1035670, 2071340, 3210577, 4142680, 6421154, 12842308, 16052885, 25684616, 32105770, 64211540, 128423080]

約数ペア:

[(1, 128423080), (2, 64211540), (4, 32105770), (5, 25684616), (8, 16052885), (10, 12842308), (20, 6421154), (31, 4142680), (40, 3210577), (62, 2071340), (124, 1035670), (155, 828536), (248, 517835), (310, 414268), (620, 207134), (1240, 103567)]