199707920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1459}}^1$

素因数の和:1560

約数の個数: 80

約数和(自身を含む): 488808000

約数和(自身を除く): 289100080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 59, 80, 116, 118, 145, 232, 236, 290, 295, 464, 472, 580, 590, 944, 1160, 1180, 1459, 1711, 2320, 2360, 2918, 3422, 4720, 5836, 6844, 7295, 8555, 11672, 13688, 14590, 17110, 23344, 27376, 29180, 34220, 42311, 58360, 68440, 84622, 86081, 116720, 136880, 169244, 172162, 211555, 338488, 344324, 423110, 430405, 676976, 688648, 846220, 860810, 1377296, 1692440, 1721620, 2496349, 3384880, 3443240, 4992698, 6886480, 9985396, 12481745, 19970792, 24963490, 39941584, 49926980, 99853960, 199707920]

約数ペア:

[(1, 199707920), (2, 99853960), (4, 49926980), (5, 39941584), (8, 24963490), (10, 19970792), (16, 12481745), (20, 9985396), (29, 6886480), (40, 4992698), (58, 3443240), (59, 3384880), (80, 2496349), (116, 1721620), (118, 1692440), (145, 1377296), (232, 860810), (236, 846220), (290, 688648), (295, 676976), (464, 430405), (472, 423110), (580, 344324), (590, 338488), (944, 211555), (1160, 172162), (1180, 169244), (1459, 136880), (1711, 116720), (2320, 86081), (2360, 84622), (2918, 68440), (3422, 58360), (4720, 42311), (5836, 34220), (6844, 29180), (7295, 27376), (8555, 23344), (11672, 17110), (13688, 14590)]