29857940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{509}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 71971200

約数和(自身を除く): 42113260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 509, 838, 1018, 1676, 2036, 2095, 2545, 2933, 3563, 4190, 5090, 5866, 7126, 8380, 10180, 11732, 14252, 14665, 17815, 29330, 35630, 58660, 71260, 213271, 426542, 853084, 1066355, 1492897, 2132710, 2985794, 4265420, 5971588, 7464485, 14928970, 29857940]

約数ペア:

[(1, 29857940), (2, 14928970), (4, 7464485), (5, 5971588), (7, 4265420), (10, 2985794), (14, 2132710), (20, 1492897), (28, 1066355), (35, 853084), (70, 426542), (140, 213271), (419, 71260), (509, 58660), (838, 35630), (1018, 29330), (1676, 17815), (2036, 14665), (2095, 14252), (2545, 11732), (2933, 10180), (3563, 8380), (4190, 7126), (5090, 5866)]