2155160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 5702400

約数和(自身を除く): 3547240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 179, 215, 280, 301, 344, 358, 430, 602, 716, 860, 895, 1204, 1253, 1432, 1505, 1720, 1790, 2408, 2506, 3010, 3580, 5012, 6020, 6265, 7160, 7697, 10024, 12040, 12530, 15394, 25060, 30788, 38485, 50120, 53879, 61576, 76970, 107758, 153940, 215516, 269395, 307880, 431032, 538790, 1077580, 2155160]

約数ペア:

[(1, 2155160), (2, 1077580), (4, 538790), (5, 431032), (7, 307880), (8, 269395), (10, 215516), (14, 153940), (20, 107758), (28, 76970), (35, 61576), (40, 53879), (43, 50120), (56, 38485), (70, 30788), (86, 25060), (140, 15394), (172, 12530), (179, 12040), (215, 10024), (280, 7697), (301, 7160), (344, 6265), (358, 6020), (430, 5012), (602, 3580), (716, 3010), (860, 2506), (895, 2408), (1204, 1790), (1253, 1720), (1432, 1505)]