646914780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{9239}}^1$

素因数の和:9643

約数の個数: 72

約数和(自身を含む): 1967565600

約数和(自身を除く): 1320650820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1167, 1556, 1945, 2334, 3501, 3890, 4668, 5835, 7002, 7780, 9239, 11670, 14004, 17505, 18478, 23340, 27717, 35010, 36956, 46195, 55434, 70020, 83151, 92390, 110868, 138585, 166302, 184780, 277170, 332604, 415755, 554340, 831510, 1663020, 3593971, 7187942, 10781913, 14375884, 17969855, 21563826, 32345739, 35939710, 43127652, 53909565, 64691478, 71879420, 107819130, 129382956, 161728695, 215638260, 323457390, 646914780]

約数ペア:

[(1, 646914780), (2, 323457390), (3, 215638260), (4, 161728695), (5, 129382956), (6, 107819130), (9, 71879420), (10, 64691478), (12, 53909565), (15, 43127652), (18, 35939710), (20, 32345739), (30, 21563826), (36, 17969855), (45, 14375884), (60, 10781913), (90, 7187942), (180, 3593971), (389, 1663020), (778, 831510), (1167, 554340), (1556, 415755), (1945, 332604), (2334, 277170), (3501, 184780), (3890, 166302), (4668, 138585), (5835, 110868), (7002, 92390), (7780, 83151), (9239, 70020), (11670, 55434), (14004, 46195), (17505, 36956), (18478, 35010), (23340, 27717)]