161256780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8219}}^1$

素因数の和:8343

約数の個数: 72

約数和(自身を含む): 493693200

約数和(自身を除く): 332436420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4905, 6540, 8219, 9810, 16438, 19620, 24657, 32876, 41095, 49314, 73971, 82190, 98628, 123285, 147942, 164380, 246570, 295884, 369855, 493140, 739710, 895871, 1479420, 1791742, 2687613, 3583484, 4479355, 5375226, 8062839, 8958710, 10750452, 13438065, 16125678, 17917420, 26876130, 32251356, 40314195, 53752260, 80628390, 161256780]

約数ペア:

[(1, 161256780), (2, 80628390), (3, 53752260), (4, 40314195), (5, 32251356), (6, 26876130), (9, 17917420), (10, 16125678), (12, 13438065), (15, 10750452), (18, 8958710), (20, 8062839), (30, 5375226), (36, 4479355), (45, 3583484), (60, 2687613), (90, 1791742), (109, 1479420), (180, 895871), (218, 739710), (327, 493140), (436, 369855), (545, 295884), (654, 246570), (981, 164380), (1090, 147942), (1308, 123285), (1635, 98628), (1962, 82190), (2180, 73971), (3270, 49314), (3924, 41095), (4905, 32876), (6540, 24657), (8219, 19620), (9810, 16438)]