28805354920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1\times {\mathrm{22481}}^1$

素因数の和:22906

約数の個数: 64

約数和(自身を含む): 65654634240

約数和(自身を除く): 36849279320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 311, 412, 515, 622, 824, 1030, 1244, 1555, 2060, 2488, 3110, 4120, 6220, 12440, 22481, 32033, 44962, 64066, 89924, 112405, 128132, 160165, 179848, 224810, 256264, 320330, 449620, 640660, 899240, 1281320, 2315543, 4631086, 6991591, 9262172, 11577715, 13983182, 18524344, 23155430, 27966364, 34957955, 46310860, 55932728, 69915910, 92621720, 139831820, 279663640, 720133873, 1440267746, 2880535492, 3600669365, 5761070984, 7201338730, 14402677460, 28805354920]

約数ペア:

[(1, 28805354920), (2, 14402677460), (4, 7201338730), (5, 5761070984), (8, 3600669365), (10, 2880535492), (20, 1440267746), (40, 720133873), (103, 279663640), (206, 139831820), (311, 92621720), (412, 69915910), (515, 55932728), (622, 46310860), (824, 34957955), (1030, 27966364), (1244, 23155430), (1555, 18524344), (2060, 13983182), (2488, 11577715), (3110, 9262172), (4120, 6991591), (6220, 4631086), (12440, 2315543), (22481, 1281320), (32033, 899240), (44962, 640660), (64066, 449620), (89924, 320330), (112405, 256264), (128132, 224810), (160165, 179848)]