20865650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{683}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 21881614

約数列:

[1, 2, 5, 10, 13, 25, 26, 47, 50, 65, 94, 130, 235, 325, 470, 611, 650, 683, 1175, 1222, 1366, 2350, 3055, 3415, 6110, 6830, 8879, 15275, 17075, 17758, 30550, 32101, 34150, 44395, 64202, 88790, 160505, 221975, 321010, 417313, 443950, 802525, 834626, 1605050, 2086565, 4173130, 10432825, 20865650]

約数ペア:

[(1, 20865650), (2, 10432825), (5, 4173130), (10, 2086565), (13, 1605050), (25, 834626), (26, 802525), (47, 443950), (50, 417313), (65, 321010), (94, 221975), (130, 160505), (235, 88790), (325, 64202), (470, 44395), (611, 34150), (650, 32101), (683, 30550), (1175, 17758), (1222, 17075), (1366, 15275), (2350, 8879), (3055, 6830), (3415, 6110)]