31998020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1283}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 71184960

約数和(自身を除く): 39186940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 1283, 2494, 2566, 4988, 5132, 6235, 6415, 12470, 12830, 24940, 25660, 37207, 55169, 74414, 110338, 148828, 186035, 220676, 275845, 372070, 551690, 744140, 1103380, 1599901, 3199802, 6399604, 7999505, 15999010, 31998020]

約数ペア:

[(1, 31998020), (2, 15999010), (4, 7999505), (5, 6399604), (10, 3199802), (20, 1599901), (29, 1103380), (43, 744140), (58, 551690), (86, 372070), (116, 275845), (145, 220676), (172, 186035), (215, 148828), (290, 110338), (430, 74414), (580, 55169), (860, 37207), (1247, 25660), (1283, 24940), (2494, 12830), (2566, 12470), (4988, 6415), (5132, 6235)]