42364280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2220

約数の個数: 64

約数和(自身を含む): 110522880

約数和(自身を除く): 68158600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2131, 2485, 2840, 3976, 4262, 4970, 8524, 9940, 10655, 14917, 17048, 19880, 21310, 29834, 42620, 59668, 74585, 85240, 119336, 149170, 151301, 298340, 302602, 596680, 605204, 756505, 1059107, 1210408, 1513010, 2118214, 3026020, 4236428, 5295535, 6052040, 8472856, 10591070, 21182140, 42364280]

約数ペア:

[(1, 42364280), (2, 21182140), (4, 10591070), (5, 8472856), (7, 6052040), (8, 5295535), (10, 4236428), (14, 3026020), (20, 2118214), (28, 1513010), (35, 1210408), (40, 1059107), (56, 756505), (70, 605204), (71, 596680), (140, 302602), (142, 298340), (280, 151301), (284, 149170), (355, 119336), (497, 85240), (568, 74585), (710, 59668), (994, 42620), (1420, 29834), (1988, 21310), (2131, 19880), (2485, 17048), (2840, 14917), (3976, 10655), (4262, 9940), (4970, 8524)]