20684580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2897}}^1$

素因数の和:2933

約数の個数: 96

約数和(自身を含む): 70108416

約数和(自身を除く): 49423836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 2897, 3570, 5794, 7140, 8691, 11588, 14485, 17382, 20279, 28970, 34764, 40558, 43455, 49249, 57940, 60837, 81116, 86910, 98498, 101395, 121674, 147747, 173820, 196996, 202790, 243348, 246245, 295494, 304185, 344743, 405580, 492490, 590988, 608370, 689486, 738735, 984980, 1034229, 1216740, 1378972, 1477470, 1723715, 2068458, 2954940, 3447430, 4136916, 5171145, 6894860, 10342290, 20684580]

約数ペア:

[(1, 20684580), (2, 10342290), (3, 6894860), (4, 5171145), (5, 4136916), (6, 3447430), (7, 2954940), (10, 2068458), (12, 1723715), (14, 1477470), (15, 1378972), (17, 1216740), (20, 1034229), (21, 984980), (28, 738735), (30, 689486), (34, 608370), (35, 590988), (42, 492490), (51, 405580), (60, 344743), (68, 304185), (70, 295494), (84, 246245), (85, 243348), (102, 202790), (105, 196996), (119, 173820), (140, 147747), (170, 121674), (204, 101395), (210, 98498), (238, 86910), (255, 81116), (340, 60837), (357, 57940), (420, 49249), (476, 43455), (510, 40558), (595, 34764), (714, 28970), (1020, 20279), (1190, 17382), (1428, 14485), (1785, 11588), (2380, 8691), (2897, 7140), (3570, 5794)]