30720284

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 63479808

約数和(自身を除く): 32759524

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 127, 163, 212, 254, 326, 371, 508, 652, 742, 889, 1141, 1484, 1778, 2282, 3556, 4564, 6731, 8639, 13462, 17278, 20701, 26924, 34556, 41402, 47117, 60473, 82804, 94234, 120946, 144907, 188468, 241892, 289814, 579628, 1097153, 2194306, 4388612, 7680071, 15360142, 30720284]

約数ペア:

[(1, 30720284), (2, 15360142), (4, 7680071), (7, 4388612), (14, 2194306), (28, 1097153), (53, 579628), (106, 289814), (127, 241892), (163, 188468), (212, 144907), (254, 120946), (326, 94234), (371, 82804), (508, 60473), (652, 47117), (742, 41402), (889, 34556), (1141, 26924), (1484, 20701), (1778, 17278), (2282, 13462), (3556, 8639), (4564, 6731)]