20275790

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:884

約数の個数: 32

約数和(自身を含む): 38006496

約数和(自身を除く): 17730706

約数列:

[1, 2, 5, 10, 43, 61, 86, 122, 215, 305, 430, 610, 773, 1546, 2623, 3865, 5246, 7730, 13115, 26230, 33239, 47153, 66478, 94306, 166195, 235765, 332390, 471530, 2027579, 4055158, 10137895, 20275790]

約数ペア:

[(1, 20275790), (2, 10137895), (5, 4055158), (10, 2027579), (43, 471530), (61, 332390), (86, 235765), (122, 166195), (215, 94306), (305, 66478), (430, 47153), (610, 33239), (773, 26230), (1546, 13115), (2623, 7730), (3865, 5246)]