20925720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1625

約数の個数: 96

約数和(自身を含む): 69891120

約数和(自身を除く): 48965400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1571, 1665, 2220, 2664, 3142, 3330, 4440, 4713, 6284, 6660, 7855, 9426, 12568, 13320, 14139, 15710, 18852, 23565, 28278, 31420, 37704, 47130, 56556, 58127, 62840, 70695, 94260, 113112, 116254, 141390, 174381, 188520, 232508, 282780, 290635, 348762, 465016, 523143, 565560, 581270, 697524, 871905, 1046286, 1162540, 1395048, 1743810, 2092572, 2325080, 2615715, 3487620, 4185144, 5231430, 6975240, 10462860, 20925720]

約数ペア:

[(1, 20925720), (2, 10462860), (3, 6975240), (4, 5231430), (5, 4185144), (6, 3487620), (8, 2615715), (9, 2325080), (10, 2092572), (12, 1743810), (15, 1395048), (18, 1162540), (20, 1046286), (24, 871905), (30, 697524), (36, 581270), (37, 565560), (40, 523143), (45, 465016), (60, 348762), (72, 290635), (74, 282780), (90, 232508), (111, 188520), (120, 174381), (148, 141390), (180, 116254), (185, 113112), (222, 94260), (296, 70695), (333, 62840), (360, 58127), (370, 56556), (444, 47130), (555, 37704), (666, 31420), (740, 28278), (888, 23565), (1110, 18852), (1332, 15710), (1480, 14139), (1571, 13320), (1665, 12568), (2220, 9426), (2664, 7855), (3142, 6660), (3330, 6284), (4440, 4713)]