20746740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1051}}^1$

素因数の和:1117

約数の個数: 96

約数和(自身を含む): 67866624

約数和(自身を除く): 47119884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1051, 1316, 1410, 1645, 1974, 2102, 2820, 3153, 3290, 3948, 4204, 4935, 5255, 6306, 6580, 7357, 9870, 10510, 12612, 14714, 15765, 19740, 21020, 22071, 29428, 31530, 36785, 44142, 49397, 63060, 73570, 88284, 98794, 110355, 147140, 148191, 197588, 220710, 246985, 296382, 345779, 441420, 493970, 592764, 691558, 740955, 987940, 1037337, 1383116, 1481910, 1728895, 2074674, 2963820, 3457790, 4149348, 5186685, 6915580, 10373370, 20746740]

約数ペア:

[(1, 20746740), (2, 10373370), (3, 6915580), (4, 5186685), (5, 4149348), (6, 3457790), (7, 2963820), (10, 2074674), (12, 1728895), (14, 1481910), (15, 1383116), (20, 1037337), (21, 987940), (28, 740955), (30, 691558), (35, 592764), (42, 493970), (47, 441420), (60, 345779), (70, 296382), (84, 246985), (94, 220710), (105, 197588), (140, 148191), (141, 147140), (188, 110355), (210, 98794), (235, 88284), (282, 73570), (329, 63060), (420, 49397), (470, 44142), (564, 36785), (658, 31530), (705, 29428), (940, 22071), (987, 21020), (1051, 19740), (1316, 15765), (1410, 14714), (1645, 12612), (1974, 10510), (2102, 9870), (2820, 7357), (3153, 6580), (3290, 6306), (3948, 5255), (4204, 4935)]