213438280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{10321}}^1$

素因数の和:10390

約数の個数: 64

約数和(自身を含む): 535092480

約数和(自身を除く): 321654200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 4136, 5170, 10321, 10340, 20642, 20680, 41284, 51605, 82568, 103210, 113531, 206420, 227062, 412840, 454124, 485087, 567655, 908248, 970174, 1135310, 1940348, 2270620, 2425435, 3880696, 4541240, 4850870, 5335957, 9701740, 10671914, 19403480, 21343828, 26679785, 42687656, 53359570, 106719140, 213438280]

約数ペア:

[(1, 213438280), (2, 106719140), (4, 53359570), (5, 42687656), (8, 26679785), (10, 21343828), (11, 19403480), (20, 10671914), (22, 9701740), (40, 5335957), (44, 4850870), (47, 4541240), (55, 3880696), (88, 2425435), (94, 2270620), (110, 1940348), (188, 1135310), (220, 970174), (235, 908248), (376, 567655), (440, 485087), (470, 454124), (517, 412840), (940, 227062), (1034, 206420), (1880, 113531), (2068, 103210), (2585, 82568), (4136, 51605), (5170, 41284), (10321, 20680), (10340, 20642)]