215271420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:564

約数の個数: 192

約数和(自身を含む): 751887360

約数和(自身を除く): 536615940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 89, 91, 105, 130, 140, 156, 178, 182, 195, 210, 260, 267, 273, 356, 364, 390, 420, 443, 445, 455, 534, 546, 623, 780, 886, 890, 910, 1068, 1092, 1157, 1246, 1329, 1335, 1365, 1772, 1780, 1820, 1869, 2215, 2314, 2492, 2658, 2670, 2730, 3101, 3115, 3471, 3738, 4430, 4628, 5316, 5340, 5460, 5759, 5785, 6202, 6230, 6645, 6942, 7476, 8099, 8860, 9303, 9345, 11518, 11570, 12404, 12460, 13290, 13884, 15505, 16198, 17277, 17355, 18606, 18690, 23036, 23140, 24297, 26580, 28795, 31010, 32396, 34554, 34710, 37212, 37380, 39427, 40313, 40495, 46515, 48594, 57590, 62020, 69108, 69420, 78854, 80626, 80990, 86385, 93030, 97188, 115180, 118281, 120939, 121485, 157708, 161252, 161980, 172770, 186060, 197135, 201565, 236562, 241878, 242970, 275989, 345540, 394270, 403130, 473124, 483756, 485940, 512551, 551978, 591405, 604695, 788540, 806260, 827967, 1025102, 1103956, 1182810, 1209390, 1379945, 1537653, 1655934, 2050204, 2365620, 2418780, 2562755, 2759890, 3075306, 3311868, 3587857, 4139835, 5125510, 5519780, 6150612, 7175714, 7688265, 8279670, 10251020, 10763571, 14351428, 15376530, 16559340, 17939285, 21527142, 30753060, 35878570, 43054284, 53817855, 71757140, 107635710, 215271420]

約数ペア:

[(1, 215271420), (2, 107635710), (3, 71757140), (4, 53817855), (5, 43054284), (6, 35878570), (7, 30753060), (10, 21527142), (12, 17939285), (13, 16559340), (14, 15376530), (15, 14351428), (20, 10763571), (21, 10251020), (26, 8279670), (28, 7688265), (30, 7175714), (35, 6150612), (39, 5519780), (42, 5125510), (52, 4139835), (60, 3587857), (65, 3311868), (70, 3075306), (78, 2759890), (84, 2562755), (89, 2418780), (91, 2365620), (105, 2050204), (130, 1655934), (140, 1537653), (156, 1379945), (178, 1209390), (182, 1182810), (195, 1103956), (210, 1025102), (260, 827967), (267, 806260), (273, 788540), (356, 604695), (364, 591405), (390, 551978), (420, 512551), (443, 485940), (445, 483756), (455, 473124), (534, 403130), (546, 394270), (623, 345540), (780, 275989), (886, 242970), (890, 241878), (910, 236562), (1068, 201565), (1092, 197135), (1157, 186060), (1246, 172770), (1329, 161980), (1335, 161252), (1365, 157708), (1772, 121485), (1780, 120939), (1820, 118281), (1869, 115180), (2215, 97188), (2314, 93030), (2492, 86385), (2658, 80990), (2670, 80626), (2730, 78854), (3101, 69420), (3115, 69108), (3471, 62020), (3738, 57590), (4430, 48594), (4628, 46515), (5316, 40495), (5340, 40313), (5460, 39427), (5759, 37380), (5785, 37212), (6202, 34710), (6230, 34554), (6645, 32396), (6942, 31010), (7476, 28795), (8099, 26580), (8860, 24297), (9303, 23140), (9345, 23036), (11518, 18690), (11570, 18606), (12404, 17355), (12460, 17277), (13290, 16198), (13884, 15505)]