181428560

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{13109}}^1$

素因数の和:13295

約数の個数: 40

約数和(自身を含む): 424292040

約数和(自身を除く): 242863480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 13109, 13840, 26218, 52436, 65545, 104872, 131090, 209744, 262180, 524360, 1048720, 2267857, 4535714, 9071428, 11339285, 18142856, 22678570, 36285712, 45357140, 90714280, 181428560]

約数ペア:

[(1, 181428560), (2, 90714280), (4, 45357140), (5, 36285712), (8, 22678570), (10, 18142856), (16, 11339285), (20, 9071428), (40, 4535714), (80, 2267857), (173, 1048720), (346, 524360), (692, 262180), (865, 209744), (1384, 131090), (1730, 104872), (2768, 65545), (3460, 52436), (6920, 26218), (13109, 13840)]