128691990

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{22697}}^1$

素因数の和:22723

約数の個数: 80

約数和(自身を含む): 395489952

約数和(自身を除く): 266797962

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 5670, 22697, 45394, 68091, 113485, 136182, 158879, 204273, 226970, 317758, 340455, 408546, 476637, 612819, 680910, 794395, 953274, 1021365, 1225638, 1429911, 1588790, 1838457, 2042730, 2383185, 2859822, 3064095, 3676914, 4289733, 4766370, 6128190, 7149555, 8579466, 9192285, 12869199, 14299110, 18384570, 21448665, 25738398, 42897330, 64345995, 128691990]

約数ペア:

[(1, 128691990), (2, 64345995), (3, 42897330), (5, 25738398), (6, 21448665), (7, 18384570), (9, 14299110), (10, 12869199), (14, 9192285), (15, 8579466), (18, 7149555), (21, 6128190), (27, 4766370), (30, 4289733), (35, 3676914), (42, 3064095), (45, 2859822), (54, 2383185), (63, 2042730), (70, 1838457), (81, 1588790), (90, 1429911), (105, 1225638), (126, 1021365), (135, 953274), (162, 794395), (189, 680910), (210, 612819), (270, 476637), (315, 408546), (378, 340455), (405, 317758), (567, 226970), (630, 204273), (810, 158879), (945, 136182), (1134, 113485), (1890, 68091), (2835, 45394), (5670, 22697)]