207640860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{494383}}^1$

素因数の和:494402

約数の個数: 48

約数和(自身を含む): 664452096

約数和(自身を除く): 456811236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 494383, 988766, 1483149, 1977532, 2471915, 2966298, 3460681, 4943830, 5932596, 6921362, 7415745, 9887660, 10382043, 13842724, 14831490, 17303405, 20764086, 29662980, 34606810, 41528172, 51910215, 69213620, 103820430, 207640860]

約数ペア:

[(1, 207640860), (2, 103820430), (3, 69213620), (4, 51910215), (5, 41528172), (6, 34606810), (7, 29662980), (10, 20764086), (12, 17303405), (14, 14831490), (15, 13842724), (20, 10382043), (21, 9887660), (28, 7415745), (30, 6921362), (35, 5932596), (42, 4943830), (60, 3460681), (70, 2966298), (84, 2471915), (105, 1977532), (140, 1483149), (210, 988766), (420, 494383)]