1298814580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{727}}^1\times {\mathrm{1823}}^1$

素因数の和:2573

約数の個数: 72

約数和(自身を含む): 3178925568

約数和(自身を除く): 1880110988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 727, 980, 1454, 1823, 2908, 3635, 3646, 5089, 7270, 7292, 9115, 10178, 12761, 14540, 18230, 20356, 25445, 25522, 35623, 36460, 50890, 51044, 63805, 71246, 89327, 101780, 127610, 142492, 178115, 178654, 255220, 356230, 357308, 446635, 712460, 893270, 1325321, 1786540, 2650642, 5301284, 6626605, 9277247, 13253210, 18554494, 26506420, 37108988, 46386235, 64940729, 92772470, 129881458, 185544940, 259762916, 324703645, 649407290, 1298814580]

約数ペア:

[(1, 1298814580), (2, 649407290), (4, 324703645), (5, 259762916), (7, 185544940), (10, 129881458), (14, 92772470), (20, 64940729), (28, 46386235), (35, 37108988), (49, 26506420), (70, 18554494), (98, 13253210), (140, 9277247), (196, 6626605), (245, 5301284), (490, 2650642), (727, 1786540), (980, 1325321), (1454, 893270), (1823, 712460), (2908, 446635), (3635, 357308), (3646, 356230), (5089, 255220), (7270, 178654), (7292, 178115), (9115, 142492), (10178, 127610), (12761, 101780), (14540, 89327), (18230, 71246), (20356, 63805), (25445, 51044), (25522, 50890), (35623, 36460)]