20902620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 62233920

約数和(自身を除く): 41331300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 41, 58, 60, 82, 87, 116, 123, 145, 164, 174, 205, 246, 290, 293, 348, 410, 435, 492, 580, 586, 615, 820, 870, 879, 1172, 1189, 1230, 1465, 1740, 1758, 2378, 2460, 2930, 3516, 3567, 4395, 4756, 5860, 5945, 7134, 8497, 8790, 11890, 12013, 14268, 16994, 17580, 17835, 23780, 24026, 25491, 33988, 35670, 36039, 42485, 48052, 50982, 60065, 71340, 72078, 84970, 101964, 120130, 127455, 144156, 169940, 180195, 240260, 254910, 348377, 360390, 509820, 696754, 720780, 1045131, 1393508, 1741885, 2090262, 3483770, 4180524, 5225655, 6967540, 10451310, 20902620]

約数ペア:

[(1, 20902620), (2, 10451310), (3, 6967540), (4, 5225655), (5, 4180524), (6, 3483770), (10, 2090262), (12, 1741885), (15, 1393508), (20, 1045131), (29, 720780), (30, 696754), (41, 509820), (58, 360390), (60, 348377), (82, 254910), (87, 240260), (116, 180195), (123, 169940), (145, 144156), (164, 127455), (174, 120130), (205, 101964), (246, 84970), (290, 72078), (293, 71340), (348, 60065), (410, 50982), (435, 48052), (492, 42485), (580, 36039), (586, 35670), (615, 33988), (820, 25491), (870, 24026), (879, 23780), (1172, 17835), (1189, 17580), (1230, 16994), (1465, 14268), (1740, 12013), (1758, 11890), (2378, 8790), (2460, 8497), (2930, 7134), (3516, 5945), (3567, 5860), (4395, 4756)]