20881740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1091}}^1$

素因数の和:1143

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45162420

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 29, 30, 33, 44, 55, 58, 60, 66, 87, 110, 116, 132, 145, 165, 174, 220, 290, 319, 330, 348, 435, 580, 638, 660, 870, 957, 1091, 1276, 1595, 1740, 1914, 2182, 3190, 3273, 3828, 4364, 4785, 5455, 6380, 6546, 9570, 10910, 12001, 13092, 16365, 19140, 21820, 24002, 31639, 32730, 36003, 48004, 60005, 63278, 65460, 72006, 94917, 120010, 126556, 144012, 158195, 180015, 189834, 240020, 316390, 348029, 360030, 379668, 474585, 632780, 696058, 720060, 949170, 1044087, 1392116, 1740145, 1898340, 2088174, 3480290, 4176348, 5220435, 6960580, 10440870, 20881740]

約数ペア:

[(1, 20881740), (2, 10440870), (3, 6960580), (4, 5220435), (5, 4176348), (6, 3480290), (10, 2088174), (11, 1898340), (12, 1740145), (15, 1392116), (20, 1044087), (22, 949170), (29, 720060), (30, 696058), (33, 632780), (44, 474585), (55, 379668), (58, 360030), (60, 348029), (66, 316390), (87, 240020), (110, 189834), (116, 180015), (132, 158195), (145, 144012), (165, 126556), (174, 120010), (220, 94917), (290, 72006), (319, 65460), (330, 63278), (348, 60005), (435, 48004), (580, 36003), (638, 32730), (660, 31639), (870, 24002), (957, 21820), (1091, 19140), (1276, 16365), (1595, 13092), (1740, 12001), (1914, 10910), (2182, 9570), (3190, 6546), (3273, 6380), (3828, 5455), (4364, 4785)]