678442648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{719}}^1$

素因数の和:992

約数の個数: 64

約数和(自身を含む): 1410393600

約数和(自身を除く): 731950952

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 211, 344, 422, 559, 719, 844, 1118, 1438, 1688, 2236, 2743, 2876, 4472, 5486, 5752, 9073, 9347, 10972, 18146, 18694, 21944, 30917, 36292, 37388, 61834, 72584, 74776, 117949, 123668, 151709, 235898, 247336, 303418, 401921, 471796, 606836, 803842, 943592, 1213672, 1607684, 1972217, 3215368, 3944434, 6523487, 7888868, 13046974, 15777736, 26093948, 52187896, 84805331, 169610662, 339221324, 678442648]

約数ペア:

[(1, 678442648), (2, 339221324), (4, 169610662), (8, 84805331), (13, 52187896), (26, 26093948), (43, 15777736), (52, 13046974), (86, 7888868), (104, 6523487), (172, 3944434), (211, 3215368), (344, 1972217), (422, 1607684), (559, 1213672), (719, 943592), (844, 803842), (1118, 606836), (1438, 471796), (1688, 401921), (2236, 303418), (2743, 247336), (2876, 235898), (4472, 151709), (5486, 123668), (5752, 117949), (9073, 74776), (9347, 72584), (10972, 61834), (18146, 37388), (18694, 36292), (21944, 30917)]