20812260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7079}}^1$

素因数の和:7105

約数の個数: 72

約数和(自身を含む): 67798080

約数和(自身を除く): 46985820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7079, 14158, 21237, 28316, 35395, 42474, 49553, 70790, 84948, 99106, 106185, 141580, 148659, 198212, 212370, 247765, 297318, 346871, 424740, 495530, 594636, 693742, 743295, 991060, 1040613, 1387484, 1486590, 1734355, 2081226, 2973180, 3468710, 4162452, 5203065, 6937420, 10406130, 20812260]

約数ペア:

[(1, 20812260), (2, 10406130), (3, 6937420), (4, 5203065), (5, 4162452), (6, 3468710), (7, 2973180), (10, 2081226), (12, 1734355), (14, 1486590), (15, 1387484), (20, 1040613), (21, 991060), (28, 743295), (30, 693742), (35, 594636), (42, 495530), (49, 424740), (60, 346871), (70, 297318), (84, 247765), (98, 212370), (105, 198212), (140, 148659), (147, 141580), (196, 106185), (210, 99106), (245, 84948), (294, 70790), (420, 49553), (490, 42474), (588, 35395), (735, 28316), (980, 21237), (1470, 14158), (2940, 7079)]