128590980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{306169}}^1$

素因数の和:306188

約数の個数: 48

約数和(自身を含む): 411492480

約数和(自身を除く): 282901500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 306169, 612338, 918507, 1224676, 1530845, 1837014, 2143183, 3061690, 3674028, 4286366, 4592535, 6123380, 6429549, 8572732, 9185070, 10715915, 12859098, 18370140, 21431830, 25718196, 32147745, 42863660, 64295490, 128590980]

約数ペア:

[(1, 128590980), (2, 64295490), (3, 42863660), (4, 32147745), (5, 25718196), (6, 21431830), (7, 18370140), (10, 12859098), (12, 10715915), (14, 9185070), (15, 8572732), (20, 6429549), (21, 6123380), (28, 4592535), (30, 4286366), (35, 3674028), (42, 3061690), (60, 2143183), (70, 1837014), (84, 1530845), (105, 1224676), (140, 918507), (210, 612338), (420, 306169)]