20880420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1861}}^1$

素因数の和:1901

約数の個数: 96

約数和(自身を含む): 67568256

約数和(自身を除く): 46687836

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 132, 165, 170, 187, 204, 220, 255, 330, 340, 374, 510, 561, 660, 748, 935, 1020, 1122, 1861, 1870, 2244, 2805, 3722, 3740, 5583, 5610, 7444, 9305, 11166, 11220, 18610, 20471, 22332, 27915, 31637, 37220, 40942, 55830, 61413, 63274, 81884, 94911, 102355, 111660, 122826, 126548, 158185, 189822, 204710, 245652, 307065, 316370, 348007, 379644, 409420, 474555, 614130, 632740, 696014, 949110, 1044021, 1228260, 1392028, 1740035, 1898220, 2088042, 3480070, 4176084, 5220105, 6960140, 10440210, 20880420]

約数ペア:

[(1, 20880420), (2, 10440210), (3, 6960140), (4, 5220105), (5, 4176084), (6, 3480070), (10, 2088042), (11, 1898220), (12, 1740035), (15, 1392028), (17, 1228260), (20, 1044021), (22, 949110), (30, 696014), (33, 632740), (34, 614130), (44, 474555), (51, 409420), (55, 379644), (60, 348007), (66, 316370), (68, 307065), (85, 245652), (102, 204710), (110, 189822), (132, 158185), (165, 126548), (170, 122826), (187, 111660), (204, 102355), (220, 94911), (255, 81884), (330, 63274), (340, 61413), (374, 55830), (510, 40942), (561, 37220), (660, 31637), (748, 27915), (935, 22332), (1020, 20471), (1122, 18610), (1861, 11220), (1870, 11166), (2244, 9305), (2805, 7444), (3722, 5610), (3740, 5583)]