215208

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{61}}^1$

素因数の和:87

約数の個数: 72

約数和(自身を含む): 689130

約数和(自身を除く): 473922

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 61, 63, 72, 84, 98, 122, 126, 147, 168, 183, 196, 244, 252, 294, 366, 392, 427, 441, 488, 504, 549, 588, 732, 854, 882, 1098, 1176, 1281, 1464, 1708, 1764, 2196, 2562, 2989, 3416, 3528, 3843, 4392, 5124, 5978, 7686, 8967, 10248, 11956, 15372, 17934, 23912, 26901, 30744, 35868, 53802, 71736, 107604, 215208]

約数ペア:

[(1, 215208), (2, 107604), (3, 71736), (4, 53802), (6, 35868), (7, 30744), (8, 26901), (9, 23912), (12, 17934), (14, 15372), (18, 11956), (21, 10248), (24, 8967), (28, 7686), (36, 5978), (42, 5124), (49, 4392), (56, 3843), (61, 3528), (63, 3416), (72, 2989), (84, 2562), (98, 2196), (122, 1764), (126, 1708), (147, 1464), (168, 1281), (183, 1176), (196, 1098), (244, 882), (252, 854), (294, 732), (366, 588), (392, 549), (427, 504), (441, 488)]