20537520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1031}}^1$

素因数の和:1130

約数の個数: 80

約数和(自身を含む): 64495872

約数和(自身を除く): 43958352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 83, 120, 166, 240, 249, 332, 415, 498, 664, 830, 996, 1031, 1245, 1328, 1660, 1992, 2062, 2490, 3093, 3320, 3984, 4124, 4980, 5155, 6186, 6640, 8248, 9960, 10310, 12372, 15465, 16496, 19920, 20620, 24744, 30930, 41240, 49488, 61860, 82480, 85573, 123720, 171146, 247440, 256719, 342292, 427865, 513438, 684584, 855730, 1026876, 1283595, 1369168, 1711460, 2053752, 2567190, 3422920, 4107504, 5134380, 6845840, 10268760, 20537520]

約数ペア:

[(1, 20537520), (2, 10268760), (3, 6845840), (4, 5134380), (5, 4107504), (6, 3422920), (8, 2567190), (10, 2053752), (12, 1711460), (15, 1369168), (16, 1283595), (20, 1026876), (24, 855730), (30, 684584), (40, 513438), (48, 427865), (60, 342292), (80, 256719), (83, 247440), (120, 171146), (166, 123720), (240, 85573), (249, 82480), (332, 61860), (415, 49488), (498, 41240), (664, 30930), (830, 24744), (996, 20620), (1031, 19920), (1245, 16496), (1328, 15465), (1660, 12372), (1992, 10310), (2062, 9960), (2490, 8248), (3093, 6640), (3320, 6186), (3984, 5155), (4124, 4980)]