39949520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 101243520

約数和(自身を除く): 61294000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 107, 130, 208, 214, 260, 359, 428, 520, 535, 718, 856, 1040, 1070, 1391, 1436, 1712, 1795, 2140, 2782, 2872, 3590, 4280, 4667, 5564, 5744, 6955, 7180, 8560, 9334, 11128, 13910, 14360, 18668, 22256, 23335, 27820, 28720, 37336, 38413, 46670, 55640, 74672, 76826, 93340, 111280, 153652, 186680, 192065, 307304, 373360, 384130, 499369, 614608, 768260, 998738, 1536520, 1997476, 2496845, 3073040, 3994952, 4993690, 7989904, 9987380, 19974760, 39949520]

約数ペア:

[(1, 39949520), (2, 19974760), (4, 9987380), (5, 7989904), (8, 4993690), (10, 3994952), (13, 3073040), (16, 2496845), (20, 1997476), (26, 1536520), (40, 998738), (52, 768260), (65, 614608), (80, 499369), (104, 384130), (107, 373360), (130, 307304), (208, 192065), (214, 186680), (260, 153652), (359, 111280), (428, 93340), (520, 76826), (535, 74672), (718, 55640), (856, 46670), (1040, 38413), (1070, 37336), (1391, 28720), (1436, 27820), (1712, 23335), (1795, 22256), (2140, 18668), (2782, 14360), (2872, 13910), (3590, 11128), (4280, 9334), (4667, 8560), (5564, 7180), (5744, 6955)]