51686840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1447}}^1$

素因数の和:1524

約数の個数: 64

約数和(自身を含む): 125107200

約数和(自身を除く): 73420360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1447, 1786, 1880, 2894, 3572, 4465, 5788, 7144, 7235, 8930, 11576, 14470, 17860, 27493, 28940, 35720, 54986, 57880, 68009, 109972, 136018, 137465, 219944, 272036, 274930, 340045, 544072, 549860, 680090, 1099720, 1292171, 1360180, 2584342, 2720360, 5168684, 6460855, 10337368, 12921710, 25843420, 51686840]

約数ペア:

[(1, 51686840), (2, 25843420), (4, 12921710), (5, 10337368), (8, 6460855), (10, 5168684), (19, 2720360), (20, 2584342), (38, 1360180), (40, 1292171), (47, 1099720), (76, 680090), (94, 549860), (95, 544072), (152, 340045), (188, 274930), (190, 272036), (235, 219944), (376, 137465), (380, 136018), (470, 109972), (760, 68009), (893, 57880), (940, 54986), (1447, 35720), (1786, 28940), (1880, 27493), (2894, 17860), (3572, 14470), (4465, 11576), (5788, 8930), (7144, 7235)]