20778858700

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1091}}^1\times {\mathrm{2609}}^1$

素因数の和:3787

約数の個数: 72

約数和(自身を含む): 45767226960

約数和(自身を除く): 24988368260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1091, 1460, 1825, 2182, 2609, 3650, 4364, 5218, 5455, 7300, 10436, 10910, 13045, 21820, 26090, 27275, 52180, 54550, 65225, 79643, 109100, 130450, 159286, 190457, 260900, 318572, 380914, 398215, 761828, 796430, 952285, 1592860, 1904570, 1991075, 2846419, 3809140, 3982150, 4761425, 5692838, 7964300, 9522850, 11385676, 14232095, 19045700, 28464190, 56928380, 71160475, 142320950, 207788587, 284641900, 415577174, 831154348, 1038942935, 2077885870, 4155771740, 5194714675, 10389429350, 20778858700]

約数ペア:

[(1, 20778858700), (2, 10389429350), (4, 5194714675), (5, 4155771740), (10, 2077885870), (20, 1038942935), (25, 831154348), (50, 415577174), (73, 284641900), (100, 207788587), (146, 142320950), (292, 71160475), (365, 56928380), (730, 28464190), (1091, 19045700), (1460, 14232095), (1825, 11385676), (2182, 9522850), (2609, 7964300), (3650, 5692838), (4364, 4761425), (5218, 3982150), (5455, 3809140), (7300, 2846419), (10436, 1991075), (10910, 1904570), (13045, 1592860), (21820, 952285), (26090, 796430), (27275, 761828), (52180, 398215), (54550, 380914), (65225, 318572), (79643, 260900), (109100, 190457), (130450, 159286)]