201521560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1193}}^1$

素因数の和:1348

約数の個数: 64

約数和(自身を含む): 469385280

約数和(自身を除く): 267863720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 103, 164, 205, 206, 328, 410, 412, 515, 820, 824, 1030, 1193, 1640, 2060, 2386, 4120, 4223, 4772, 5965, 8446, 9544, 11930, 16892, 21115, 23860, 33784, 42230, 47720, 48913, 84460, 97826, 122879, 168920, 195652, 244565, 245758, 391304, 489130, 491516, 614395, 978260, 983032, 1228790, 1956520, 2457580, 4915160, 5038039, 10076078, 20152156, 25190195, 40304312, 50380390, 100760780, 201521560]

約数ペア:

[(1, 201521560), (2, 100760780), (4, 50380390), (5, 40304312), (8, 25190195), (10, 20152156), (20, 10076078), (40, 5038039), (41, 4915160), (82, 2457580), (103, 1956520), (164, 1228790), (205, 983032), (206, 978260), (328, 614395), (410, 491516), (412, 489130), (515, 391304), (820, 245758), (824, 244565), (1030, 195652), (1193, 168920), (1640, 122879), (2060, 97826), (2386, 84460), (4120, 48913), (4223, 47720), (4772, 42230), (5965, 33784), (8446, 23860), (9544, 21115), (11930, 16892)]