156985780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2203}}^1$

素因数の和:2728

約数の個数: 48

約数和(自身を含む): 377677440

約数和(自身を除く): 220691660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 2036, 2203, 2545, 3563, 4406, 5090, 7126, 8812, 10180, 11015, 14252, 15421, 17815, 22030, 30842, 35630, 44060, 61684, 71260, 77105, 154210, 308420, 1121327, 2242654, 4485308, 5606635, 7849289, 11213270, 15698578, 22426540, 31397156, 39246445, 78492890, 156985780]

約数ペア:

[(1, 156985780), (2, 78492890), (4, 39246445), (5, 31397156), (7, 22426540), (10, 15698578), (14, 11213270), (20, 7849289), (28, 5606635), (35, 4485308), (70, 2242654), (140, 1121327), (509, 308420), (1018, 154210), (2036, 77105), (2203, 71260), (2545, 61684), (3563, 44060), (4406, 35630), (5090, 30842), (7126, 22030), (8812, 17815), (10180, 15421), (11015, 14252)]