180488420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{2383}}^1$

素因数の和:2940

約数の個数: 48

約数和(自身を含む): 434155008

約数和(自身を除く): 253666588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 541, 1082, 2164, 2383, 2705, 3787, 4766, 5410, 7574, 9532, 10820, 11915, 15148, 16681, 18935, 23830, 33362, 37870, 47660, 66724, 75740, 83405, 166810, 333620, 1289203, 2578406, 5156812, 6446015, 9024421, 12892030, 18048842, 25784060, 36097684, 45122105, 90244210, 180488420]

約数ペア:

[(1, 180488420), (2, 90244210), (4, 45122105), (5, 36097684), (7, 25784060), (10, 18048842), (14, 12892030), (20, 9024421), (28, 6446015), (35, 5156812), (70, 2578406), (140, 1289203), (541, 333620), (1082, 166810), (2164, 83405), (2383, 75740), (2705, 66724), (3787, 47660), (4766, 37870), (5410, 33362), (7574, 23830), (9532, 18935), (10820, 16681), (11915, 15148)]