28617260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2879}}^1$

素因数の和:2966

約数の個数: 48

約数和(自身を含む): 69672960

約数和(自身を除く): 41055700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 2879, 4970, 5758, 9940, 11516, 14395, 20153, 28790, 40306, 57580, 80612, 100765, 201530, 204409, 403060, 408818, 817636, 1022045, 1430863, 2044090, 2861726, 4088180, 5723452, 7154315, 14308630, 28617260]

約数ペア:

[(1, 28617260), (2, 14308630), (4, 7154315), (5, 5723452), (7, 4088180), (10, 2861726), (14, 2044090), (20, 1430863), (28, 1022045), (35, 817636), (70, 408818), (71, 403060), (140, 204409), (142, 201530), (284, 100765), (355, 80612), (497, 57580), (710, 40306), (994, 28790), (1420, 20153), (1988, 14395), (2485, 11516), (2879, 9940), (4970, 5758)]