90551804

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 193914000

約数和(自身を除く): 103362196

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 89, 98, 116, 178, 179, 196, 203, 356, 358, 406, 623, 716, 812, 1246, 1253, 1421, 2492, 2506, 2581, 2842, 4361, 5012, 5162, 5191, 5684, 8722, 8771, 10324, 10382, 15931, 17444, 17542, 18067, 20764, 31862, 35084, 36134, 36337, 63724, 72268, 72674, 111517, 126469, 145348, 223034, 252938, 254359, 446068, 461999, 505876, 508718, 780619, 923998, 1017436, 1561238, 1847996, 3122476, 3233993, 6467986, 12935972, 22637951, 45275902, 90551804]

約数ペア:

[(1, 90551804), (2, 45275902), (4, 22637951), (7, 12935972), (14, 6467986), (28, 3233993), (29, 3122476), (49, 1847996), (58, 1561238), (89, 1017436), (98, 923998), (116, 780619), (178, 508718), (179, 505876), (196, 461999), (203, 446068), (356, 254359), (358, 252938), (406, 223034), (623, 145348), (716, 126469), (812, 111517), (1246, 72674), (1253, 72268), (1421, 63724), (2492, 36337), (2506, 36134), (2581, 35084), (2842, 31862), (4361, 20764), (5012, 18067), (5162, 17542), (5191, 17444), (5684, 15931), (8722, 10382), (8771, 10324)]