128668890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{947}}^1$

素因数の和:1611

約数の個数: 64

約数和(自身を含む): 353839104

約数和(自身を除く): 225170214

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 647, 947, 1294, 1894, 1941, 2841, 3235, 3882, 4529, 4735, 5682, 6470, 6629, 9058, 9470, 9705, 13258, 13587, 14205, 19410, 19887, 22645, 27174, 28410, 33145, 39774, 45290, 66290, 67935, 99435, 135870, 198870, 612709, 1225418, 1838127, 3063545, 3676254, 4288963, 6127090, 8577926, 9190635, 12866889, 18381270, 21444815, 25733778, 42889630, 64334445, 128668890]

約数ペア:

[(1, 128668890), (2, 64334445), (3, 42889630), (5, 25733778), (6, 21444815), (7, 18381270), (10, 12866889), (14, 9190635), (15, 8577926), (21, 6127090), (30, 4288963), (35, 3676254), (42, 3063545), (70, 1838127), (105, 1225418), (210, 612709), (647, 198870), (947, 135870), (1294, 99435), (1894, 67935), (1941, 66290), (2841, 45290), (3235, 39774), (3882, 33145), (4529, 28410), (4735, 27174), (5682, 22645), (6470, 19887), (6629, 19410), (9058, 14205), (9470, 13587), (9705, 13258)]