81497040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 265161600

約数和(自身を除く): 183664560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 53, 60, 80, 86, 106, 120, 129, 149, 159, 172, 212, 215, 240, 258, 265, 298, 318, 344, 424, 430, 447, 516, 530, 596, 636, 645, 688, 745, 795, 848, 860, 894, 1032, 1060, 1192, 1272, 1290, 1490, 1590, 1720, 1788, 2064, 2120, 2235, 2279, 2384, 2544, 2580, 2980, 3180, 3440, 3576, 4240, 4470, 4558, 5160, 5960, 6360, 6407, 6837, 7152, 7897, 8940, 9116, 10320, 11395, 11920, 12720, 12814, 13674, 15794, 17880, 18232, 19221, 22790, 23691, 25628, 27348, 31588, 32035, 34185, 35760, 36464, 38442, 39485, 45580, 47382, 51256, 54696, 63176, 64070, 68370, 76884, 78970, 91160, 94764, 96105, 102512, 109392, 118455, 126352, 128140, 136740, 153768, 157940, 182320, 189528, 192210, 236910, 256280, 273480, 307536, 315880, 339571, 379056, 384420, 473820, 512560, 546960, 631760, 679142, 768840, 947640, 1018713, 1358284, 1537680, 1697855, 1895280, 2037426, 2716568, 3395710, 4074852, 5093565, 5433136, 6791420, 8149704, 10187130, 13582840, 16299408, 20374260, 27165680, 40748520, 81497040]

約数ペア:

[(1, 81497040), (2, 40748520), (3, 27165680), (4, 20374260), (5, 16299408), (6, 13582840), (8, 10187130), (10, 8149704), (12, 6791420), (15, 5433136), (16, 5093565), (20, 4074852), (24, 3395710), (30, 2716568), (40, 2037426), (43, 1895280), (48, 1697855), (53, 1537680), (60, 1358284), (80, 1018713), (86, 947640), (106, 768840), (120, 679142), (129, 631760), (149, 546960), (159, 512560), (172, 473820), (212, 384420), (215, 379056), (240, 339571), (258, 315880), (265, 307536), (298, 273480), (318, 256280), (344, 236910), (424, 192210), (430, 189528), (447, 182320), (516, 157940), (530, 153768), (596, 136740), (636, 128140), (645, 126352), (688, 118455), (745, 109392), (795, 102512), (848, 96105), (860, 94764), (894, 91160), (1032, 78970), (1060, 76884), (1192, 68370), (1272, 64070), (1290, 63176), (1490, 54696), (1590, 51256), (1720, 47382), (1788, 45580), (2064, 39485), (2120, 38442), (2235, 36464), (2279, 35760), (2384, 34185), (2544, 32035), (2580, 31588), (2980, 27348), (3180, 25628), (3440, 23691), (3576, 22790), (4240, 19221), (4470, 18232), (4558, 17880), (5160, 15794), (5960, 13674), (6360, 12814), (6407, 12720), (6837, 11920), (7152, 11395), (7897, 10320), (8940, 9116)]