17972560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7247}}^1$

素因数の和:7291

約数の個数: 40

約数和(自身を含む): 43140096

約数和(自身を除く): 25167536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7247, 14494, 28988, 36235, 57976, 72470, 115952, 144940, 224657, 289880, 449314, 579760, 898628, 1123285, 1797256, 2246570, 3594512, 4493140, 8986280, 17972560]

約数ペア:

[(1, 17972560), (2, 8986280), (4, 4493140), (5, 3594512), (8, 2246570), (10, 1797256), (16, 1123285), (20, 898628), (31, 579760), (40, 449314), (62, 289880), (80, 224657), (124, 144940), (155, 115952), (248, 72470), (310, 57976), (496, 36235), (620, 28988), (1240, 14494), (2480, 7247)]