20828040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4691}}^1$

素因数の和:4742

約数の個数: 64

約数和(自身を含む): 64186560

約数和(自身を除く): 43358520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4691, 9382, 14073, 18764, 23455, 28146, 37528, 46910, 56292, 70365, 93820, 112584, 140730, 173567, 187640, 281460, 347134, 520701, 562920, 694268, 867835, 1041402, 1388536, 1735670, 2082804, 2603505, 3471340, 4165608, 5207010, 6942680, 10414020, 20828040]

約数ペア:

[(1, 20828040), (2, 10414020), (3, 6942680), (4, 5207010), (5, 4165608), (6, 3471340), (8, 2603505), (10, 2082804), (12, 1735670), (15, 1388536), (20, 1041402), (24, 867835), (30, 694268), (37, 562920), (40, 520701), (60, 347134), (74, 281460), (111, 187640), (120, 173567), (148, 140730), (185, 112584), (222, 93820), (296, 70365), (370, 56292), (444, 46910), (555, 37528), (740, 28146), (888, 23455), (1110, 18764), (1480, 14073), (2220, 9382), (4440, 4691)]