639043380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{22613}}^1$

素因数の和:22785

約数の個数: 72

約数和(自身を含む): 1950864552

約数和(自身を除く): 1311821172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2826, 3140, 4710, 5652, 7065, 9420, 14130, 22613, 28260, 45226, 67839, 90452, 113065, 135678, 203517, 226130, 271356, 339195, 407034, 452260, 678390, 814068, 1017585, 1356780, 2035170, 3550241, 4070340, 7100482, 10650723, 14200964, 17751205, 21301446, 31952169, 35502410, 42602892, 53253615, 63904338, 71004820, 106507230, 127808676, 159760845, 213014460, 319521690, 639043380]

約数ペア:

[(1, 639043380), (2, 319521690), (3, 213014460), (4, 159760845), (5, 127808676), (6, 106507230), (9, 71004820), (10, 63904338), (12, 53253615), (15, 42602892), (18, 35502410), (20, 31952169), (30, 21301446), (36, 17751205), (45, 14200964), (60, 10650723), (90, 7100482), (157, 4070340), (180, 3550241), (314, 2035170), (471, 1356780), (628, 1017585), (785, 814068), (942, 678390), (1413, 452260), (1570, 407034), (1884, 339195), (2355, 271356), (2826, 226130), (3140, 203517), (4710, 135678), (5652, 113065), (7065, 90452), (9420, 67839), (14130, 45226), (22613, 28260)]