18777440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 30864544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 80, 88, 94, 110, 160, 176, 188, 220, 227, 235, 352, 376, 440, 454, 470, 517, 752, 880, 908, 940, 1034, 1135, 1504, 1760, 1816, 1880, 2068, 2270, 2497, 2585, 3632, 3760, 4136, 4540, 4994, 5170, 7264, 7520, 8272, 9080, 9988, 10340, 10669, 12485, 16544, 18160, 19976, 20680, 21338, 24970, 36320, 39952, 41360, 42676, 49940, 53345, 79904, 82720, 85352, 99880, 106690, 117359, 170704, 199760, 213380, 234718, 341408, 399520, 426760, 469436, 586795, 853520, 938872, 1173590, 1707040, 1877744, 2347180, 3755488, 4694360, 9388720, 18777440]

約数ペア:

[(1, 18777440), (2, 9388720), (4, 4694360), (5, 3755488), (8, 2347180), (10, 1877744), (11, 1707040), (16, 1173590), (20, 938872), (22, 853520), (32, 586795), (40, 469436), (44, 426760), (47, 399520), (55, 341408), (80, 234718), (88, 213380), (94, 199760), (110, 170704), (160, 117359), (176, 106690), (188, 99880), (220, 85352), (227, 82720), (235, 79904), (352, 53345), (376, 49940), (440, 42676), (454, 41360), (470, 39952), (517, 36320), (752, 24970), (880, 21338), (908, 20680), (940, 19976), (1034, 18160), (1135, 16544), (1504, 12485), (1760, 10669), (1816, 10340), (1880, 9988), (2068, 9080), (2270, 8272), (2497, 7520), (2585, 7264), (3632, 5170), (3760, 4994), (4136, 4540)]