20330820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:825

約数の個数: 72

約数和(自身を含む): 62112960

約数和(自身を除く): 41782140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 631, 716, 895, 1074, 1262, 1611, 1790, 1893, 2148, 2524, 2685, 3155, 3222, 3580, 3786, 5370, 5679, 6310, 6444, 7572, 8055, 9465, 10740, 11358, 12620, 16110, 18930, 22716, 28395, 32220, 37860, 56790, 112949, 113580, 225898, 338847, 451796, 564745, 677694, 1016541, 1129490, 1355388, 1694235, 2033082, 2258980, 3388470, 4066164, 5082705, 6776940, 10165410, 20330820]

約数ペア:

[(1, 20330820), (2, 10165410), (3, 6776940), (4, 5082705), (5, 4066164), (6, 3388470), (9, 2258980), (10, 2033082), (12, 1694235), (15, 1355388), (18, 1129490), (20, 1016541), (30, 677694), (36, 564745), (45, 451796), (60, 338847), (90, 225898), (179, 113580), (180, 112949), (358, 56790), (537, 37860), (631, 32220), (716, 28395), (895, 22716), (1074, 18930), (1262, 16110), (1611, 12620), (1790, 11358), (1893, 10740), (2148, 9465), (2524, 8055), (2685, 7572), (3155, 6444), (3222, 6310), (3580, 5679), (3786, 5370)]