20173878925

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1\times {\mathrm{883}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 26174985408

約数和(自身を除く): 6001106483

約数列:

[1, 5, 25, 43, 53, 215, 265, 401, 883, 1075, 1325, 2005, 2279, 4415, 10025, 11395, 17243, 21253, 22075, 37969, 46799, 56975, 86215, 106265, 189845, 233995, 354083, 431075, 531325, 913879, 949225, 1169975, 1770415, 2012357, 4569395, 8852075, 10061785, 15225569, 18766399, 22846975, 50308925, 76127845, 93831995, 380639225, 469159975, 806955157, 4034775785, 20173878925]

約数ペア:

[(1, 20173878925), (5, 4034775785), (25, 806955157), (43, 469159975), (53, 380639225), (215, 93831995), (265, 76127845), (401, 50308925), (883, 22846975), (1075, 18766399), (1325, 15225569), (2005, 10061785), (2279, 8852075), (4415, 4569395), (10025, 2012357), (11395, 1770415), (17243, 1169975), (21253, 949225), (22075, 913879), (37969, 531325), (46799, 431075), (56975, 354083), (86215, 233995), (106265, 189845)]