666869980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{250703}}^1$

素因数の和:250738

約数の個数: 48

約数和(自身を含む): 1684730880

約数和(自身を除く): 1017860900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 250703, 501406, 1002812, 1253515, 1754921, 2507030, 3509842, 4763357, 5014060, 7019684, 8774605, 9526714, 17549210, 19053428, 23816785, 33343499, 35098420, 47633570, 66686998, 95267140, 133373996, 166717495, 333434990, 666869980]

約数ペア:

[(1, 666869980), (2, 333434990), (4, 166717495), (5, 133373996), (7, 95267140), (10, 66686998), (14, 47633570), (19, 35098420), (20, 33343499), (28, 23816785), (35, 19053428), (38, 17549210), (70, 9526714), (76, 8774605), (95, 7019684), (133, 5014060), (140, 4763357), (190, 3509842), (266, 2507030), (380, 1754921), (532, 1253515), (665, 1002812), (1330, 501406), (2660, 250703)]