82439980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2239}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 198696960

約数和(自身を除く): 116256980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 1052, 1315, 1841, 2239, 2630, 3682, 4478, 5260, 7364, 8956, 9205, 11195, 15673, 18410, 22390, 31346, 36820, 44780, 62692, 78365, 156730, 313460, 588857, 1177714, 2355428, 2944285, 4121999, 5888570, 8243998, 11777140, 16487996, 20609995, 41219990, 82439980]

約数ペア:

[(1, 82439980), (2, 41219990), (4, 20609995), (5, 16487996), (7, 11777140), (10, 8243998), (14, 5888570), (20, 4121999), (28, 2944285), (35, 2355428), (70, 1177714), (140, 588857), (263, 313460), (526, 156730), (1052, 78365), (1315, 62692), (1841, 44780), (2239, 36820), (2630, 31346), (3682, 22390), (4478, 18410), (5260, 15673), (7364, 11195), (8956, 9205)]