18190240

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4943}}^1$

素因数の和:4981

約数の個数: 48

約数和(自身を含む): 44851968

約数和(自身を除く): 26661728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 4943, 9886, 19772, 24715, 39544, 49430, 79088, 98860, 113689, 158176, 197720, 227378, 395440, 454756, 568445, 790880, 909512, 1136890, 1819024, 2273780, 3638048, 4547560, 9095120, 18190240]

約数ペア:

[(1, 18190240), (2, 9095120), (4, 4547560), (5, 3638048), (8, 2273780), (10, 1819024), (16, 1136890), (20, 909512), (23, 790880), (32, 568445), (40, 454756), (46, 395440), (80, 227378), (92, 197720), (115, 158176), (160, 113689), (184, 98860), (230, 79088), (368, 49430), (460, 39544), (736, 24715), (920, 19772), (1840, 9886), (3680, 4943)]