40537840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{379}}^1$

素因数の和:590

約数の個数: 80

約数和(自身を含む): 108564480

約数和(自身を除く): 68026640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 191, 280, 379, 382, 560, 758, 764, 955, 1337, 1516, 1528, 1895, 1910, 2653, 2674, 3032, 3056, 3790, 3820, 5306, 5348, 6064, 6685, 7580, 7640, 10612, 10696, 13265, 13370, 15160, 15280, 21224, 21392, 26530, 26740, 30320, 42448, 53060, 53480, 72389, 106120, 106960, 144778, 212240, 289556, 361945, 506723, 579112, 723890, 1013446, 1158224, 1447780, 2026892, 2533615, 2895560, 4053784, 5067230, 5791120, 8107568, 10134460, 20268920, 40537840]

約数ペア:

[(1, 40537840), (2, 20268920), (4, 10134460), (5, 8107568), (7, 5791120), (8, 5067230), (10, 4053784), (14, 2895560), (16, 2533615), (20, 2026892), (28, 1447780), (35, 1158224), (40, 1013446), (56, 723890), (70, 579112), (80, 506723), (112, 361945), (140, 289556), (191, 212240), (280, 144778), (379, 106960), (382, 106120), (560, 72389), (758, 53480), (764, 53060), (955, 42448), (1337, 30320), (1516, 26740), (1528, 26530), (1895, 21392), (1910, 21224), (2653, 15280), (2674, 15160), (3032, 13370), (3056, 13265), (3790, 10696), (3820, 10612), (5306, 7640), (5348, 7580), (6064, 6685)]