18977420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12323}}^1$

素因数の和:12350

約数の個数: 48

約数和(自身を含む): 49690368

約数和(自身を除く): 30712948

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12323, 24646, 49292, 61615, 86261, 123230, 135553, 172522, 246460, 271106, 345044, 431305, 542212, 677765, 862610, 948871, 1355530, 1725220, 1897742, 2711060, 3795484, 4744355, 9488710, 18977420]

約数ペア:

[(1, 18977420), (2, 9488710), (4, 4744355), (5, 3795484), (7, 2711060), (10, 1897742), (11, 1725220), (14, 1355530), (20, 948871), (22, 862610), (28, 677765), (35, 542212), (44, 431305), (55, 345044), (70, 271106), (77, 246460), (110, 172522), (140, 135553), (154, 123230), (220, 86261), (308, 61615), (385, 49292), (770, 24646), (1540, 12323)]