2614220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 6386688

約数和(自身を除く): 3772468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 263, 284, 355, 497, 526, 710, 994, 1052, 1315, 1420, 1841, 1988, 2485, 2630, 3682, 4970, 5260, 7364, 9205, 9940, 18410, 18673, 36820, 37346, 74692, 93365, 130711, 186730, 261422, 373460, 522844, 653555, 1307110, 2614220]

約数ペア:

[(1, 2614220), (2, 1307110), (4, 653555), (5, 522844), (7, 373460), (10, 261422), (14, 186730), (20, 130711), (28, 93365), (35, 74692), (70, 37346), (71, 36820), (140, 18673), (142, 18410), (263, 9940), (284, 9205), (355, 7364), (497, 5260), (526, 4970), (710, 3682), (994, 2630), (1052, 2485), (1315, 1988), (1420, 1841)]