18354280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65551}}^1$

素因数の和:65569

約数の個数: 32

約数和(自身を含む): 47197440

約数和(自身を除く): 28843160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65551, 131102, 262204, 327755, 458857, 524408, 655510, 917714, 1311020, 1835428, 2294285, 2622040, 3670856, 4588570, 9177140, 18354280]

約数ペア:

[(1, 18354280), (2, 9177140), (4, 4588570), (5, 3670856), (7, 2622040), (8, 2294285), (10, 1835428), (14, 1311020), (20, 917714), (28, 655510), (35, 524408), (40, 458857), (56, 327755), (70, 262204), (140, 131102), (280, 65551)]