20200740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6871}}^1$

素因数の和:6897

約数の個数: 72

約数和(自身を含む): 65806272

約数和(自身を除く): 45605532

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, 6871, 13742, 20613, 27484, 34355, 41226, 48097, 68710, 82452, 96194, 103065, 137420, 144291, 192388, 206130, 240485, 288582, 336679, 412260, 480970, 577164, 673358, 721455, 961940, 1010037, 1346716, 1442910, 1683395, 2020074, 2885820, 3366790, 4040148, 5050185, 6733580, 10100370, 20200740]

約数ペア:

[(1, 20200740), (2, 10100370), (3, 6733580), (4, 5050185), (5, 4040148), (6, 3366790), (7, 2885820), (10, 2020074), (12, 1683395), (14, 1442910), (15, 1346716), (20, 1010037), (21, 961940), (28, 721455), (30, 673358), (35, 577164), (42, 480970), (49, 412260), (60, 336679), (70, 288582), (84, 240485), (98, 206130), (105, 192388), (140, 144291), (147, 137420), (196, 103065), (210, 96194), (245, 82452), (294, 68710), (420, 48097), (490, 41226), (588, 34355), (735, 27484), (980, 20613), (1470, 13742), (2940, 6871)]