20218088940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6876901}}^1$

素因数の和:6876927

約数の個数: 72

約数和(自身を含む): 65853213552

約数和(自身を除く): 45635124612

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, 6876901, 13753802, 20630703, 27507604, 34384505, 41261406, 48138307, 68769010, 82522812, 96276614, 103153515, 137538020, 144414921, 192553228, 206307030, 240691535, 288829842, 336968149, 412614060, 481383070, 577659684, 673936298, 722074605, 962766140, 1010904447, 1347872596, 1444149210, 1684840745, 2021808894, 2888298420, 3369681490, 4043617788, 5054522235, 6739362980, 10109044470, 20218088940]

約数ペア:

[(1, 20218088940), (2, 10109044470), (3, 6739362980), (4, 5054522235), (5, 4043617788), (6, 3369681490), (7, 2888298420), (10, 2021808894), (12, 1684840745), (14, 1444149210), (15, 1347872596), (20, 1010904447), (21, 962766140), (28, 722074605), (30, 673936298), (35, 577659684), (42, 481383070), (49, 412614060), (60, 336968149), (70, 288829842), (84, 240691535), (98, 206307030), (105, 192553228), (140, 144414921), (147, 137538020), (196, 103153515), (210, 96276614), (245, 82522812), (294, 68769010), (420, 48138307), (490, 41261406), (588, 34384505), (735, 27507604), (980, 20630703), (1470, 13753802), (2940, 6876901)]