217705620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:382

約数の個数: 144

約数和(自身を含む): 677827584

約数和(自身を除く): 460121964

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 157, 165, 191, 220, 242, 314, 330, 363, 382, 471, 484, 573, 605, 628, 660, 726, 764, 785, 942, 955, 1146, 1210, 1452, 1570, 1727, 1815, 1884, 1910, 2101, 2292, 2355, 2420, 2865, 3140, 3454, 3630, 3820, 4202, 4710, 5181, 5730, 6303, 6908, 7260, 8404, 8635, 9420, 10362, 10505, 11460, 12606, 17270, 18997, 20724, 21010, 23111, 25212, 25905, 29987, 31515, 34540, 37994, 42020, 46222, 51810, 56991, 59974, 63030, 69333, 75988, 89961, 92444, 94985, 103620, 113982, 115555, 119948, 126060, 138666, 149935, 179922, 189970, 227964, 231110, 277332, 284955, 299870, 329857, 346665, 359844, 379940, 449805, 462220, 569910, 599740, 659714, 693330, 899610, 989571, 1139820, 1319428, 1386660, 1649285, 1799220, 1979142, 3298570, 3628427, 3958284, 4947855, 6597140, 7256854, 9895710, 10885281, 14513708, 18142135, 19791420, 21770562, 36284270, 43541124, 54426405, 72568540, 108852810, 217705620]

約数ペア:

[(1, 217705620), (2, 108852810), (3, 72568540), (4, 54426405), (5, 43541124), (6, 36284270), (10, 21770562), (11, 19791420), (12, 18142135), (15, 14513708), (20, 10885281), (22, 9895710), (30, 7256854), (33, 6597140), (44, 4947855), (55, 3958284), (60, 3628427), (66, 3298570), (110, 1979142), (121, 1799220), (132, 1649285), (157, 1386660), (165, 1319428), (191, 1139820), (220, 989571), (242, 899610), (314, 693330), (330, 659714), (363, 599740), (382, 569910), (471, 462220), (484, 449805), (573, 379940), (605, 359844), (628, 346665), (660, 329857), (726, 299870), (764, 284955), (785, 277332), (942, 231110), (955, 227964), (1146, 189970), (1210, 179922), (1452, 149935), (1570, 138666), (1727, 126060), (1815, 119948), (1884, 115555), (1910, 113982), (2101, 103620), (2292, 94985), (2355, 92444), (2420, 89961), (2865, 75988), (3140, 69333), (3454, 63030), (3630, 59974), (3820, 56991), (4202, 51810), (4710, 46222), (5181, 42020), (5730, 37994), (6303, 34540), (6908, 31515), (7260, 29987), (8404, 25905), (8635, 25212), (9420, 23111), (10362, 21010), (10505, 20724), (11460, 18997), (12606, 17270)]