31367180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{541}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 71387904

約数和(自身を除く): 40020724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 223, 260, 446, 541, 892, 1082, 1115, 2164, 2230, 2705, 2899, 4460, 5410, 5798, 7033, 10820, 11596, 14066, 14495, 28132, 28990, 35165, 57980, 70330, 120643, 140660, 241286, 482572, 603215, 1206430, 1568359, 2412860, 3136718, 6273436, 7841795, 15683590, 31367180]

約数ペア:

[(1, 31367180), (2, 15683590), (4, 7841795), (5, 6273436), (10, 3136718), (13, 2412860), (20, 1568359), (26, 1206430), (52, 603215), (65, 482572), (130, 241286), (223, 140660), (260, 120643), (446, 70330), (541, 57980), (892, 35165), (1082, 28990), (1115, 28132), (2164, 14495), (2230, 14066), (2705, 11596), (2899, 10820), (4460, 7033), (5410, 5798)]