217981620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28163}}^1$

素因数の和:28221

約数の個数: 72

約数和(自身を含む): 676611936

約数和(自身を除く): 458630316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 28163, 56326, 84489, 112652, 140815, 168978, 253467, 281630, 337956, 422445, 506934, 563260, 844890, 1013868, 1211009, 1267335, 1689780, 2422018, 2534670, 3633027, 4844036, 5069340, 6055045, 7266054, 10899081, 12110090, 14532108, 18165135, 21798162, 24220180, 36330270, 43596324, 54495405, 72660540, 108990810, 217981620]

約数ペア:

[(1, 217981620), (2, 108990810), (3, 72660540), (4, 54495405), (5, 43596324), (6, 36330270), (9, 24220180), (10, 21798162), (12, 18165135), (15, 14532108), (18, 12110090), (20, 10899081), (30, 7266054), (36, 6055045), (43, 5069340), (45, 4844036), (60, 3633027), (86, 2534670), (90, 2422018), (129, 1689780), (172, 1267335), (180, 1211009), (215, 1013868), (258, 844890), (387, 563260), (430, 506934), (516, 422445), (645, 337956), (774, 281630), (860, 253467), (1290, 168978), (1548, 140815), (1935, 112652), (2580, 84489), (3870, 56326), (7740, 28163)]