27454280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 71642880

約数和(自身を除く): 44188600

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, 1381, 1420, 1988, 2485, 2762, 2840, 3976, 4970, 5524, 6905, 9667, 9940, 11048, 13810, 19334, 19880, 27620, 38668, 48335, 55240, 77336, 96670, 98051, 193340, 196102, 386680, 392204, 490255, 686357, 784408, 980510, 1372714, 1961020, 2745428, 3431785, 3922040, 5490856, 6863570, 13727140, 27454280]

約数ペア:

[(1, 27454280), (2, 13727140), (4, 6863570), (5, 5490856), (7, 3922040), (8, 3431785), (10, 2745428), (14, 1961020), (20, 1372714), (28, 980510), (35, 784408), (40, 686357), (56, 490255), (70, 392204), (71, 386680), (140, 196102), (142, 193340), (280, 98051), (284, 96670), (355, 77336), (497, 55240), (568, 48335), (710, 38668), (994, 27620), (1381, 19880), (1420, 19334), (1988, 13810), (2485, 11048), (2762, 9940), (2840, 9667), (3976, 6905), (4970, 5524)]