128907540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5639}}^1$

素因数の和:5781

約数の個数: 72

約数和(自身を含む): 394168320

約数和(自身を除く): 265260780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 3810, 4572, 5639, 5715, 7620, 11278, 11430, 16917, 22556, 22860, 28195, 33834, 50751, 56390, 67668, 84585, 101502, 112780, 169170, 203004, 253755, 338340, 507510, 716153, 1015020, 1432306, 2148459, 2864612, 3580765, 4296918, 6445377, 7161530, 8593836, 10742295, 12890754, 14323060, 21484590, 25781508, 32226885, 42969180, 64453770, 128907540]

約数ペア:

[(1, 128907540), (2, 64453770), (3, 42969180), (4, 32226885), (5, 25781508), (6, 21484590), (9, 14323060), (10, 12890754), (12, 10742295), (15, 8593836), (18, 7161530), (20, 6445377), (30, 4296918), (36, 3580765), (45, 2864612), (60, 2148459), (90, 1432306), (127, 1015020), (180, 716153), (254, 507510), (381, 338340), (508, 253755), (635, 203004), (762, 169170), (1143, 112780), (1270, 101502), (1524, 84585), (1905, 67668), (2286, 56390), (2540, 50751), (3810, 33834), (4572, 28195), (5639, 22860), (5715, 22556), (7620, 16917), (11278, 11430)]