55430420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 118917120

約数和(自身を除く): 63486700

約数列:

[1, 2, 4, 5, 10, 20, 127, 139, 157, 254, 278, 314, 508, 556, 628, 635, 695, 785, 1270, 1390, 1570, 2540, 2780, 3140, 17653, 19939, 21823, 35306, 39878, 43646, 70612, 79756, 87292, 88265, 99695, 109115, 176530, 199390, 218230, 353060, 398780, 436460, 2771521, 5543042, 11086084, 13857605, 27715210, 55430420]

約数ペア:

[(1, 55430420), (2, 27715210), (4, 13857605), (5, 11086084), (10, 5543042), (20, 2771521), (127, 436460), (139, 398780), (157, 353060), (254, 218230), (278, 199390), (314, 176530), (508, 109115), (556, 99695), (628, 88265), (635, 87292), (695, 79756), (785, 70612), (1270, 43646), (1390, 39878), (1570, 35306), (2540, 21823), (2780, 19939), (3140, 17653)]