40609520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 108945408

約数和(自身を除く): 68335888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 571, 635, 889, 1016, 1142, 1270, 1778, 2032, 2284, 2540, 2855, 3556, 3997, 4445, 4568, 5080, 5710, 7112, 7994, 8890, 9136, 10160, 11420, 14224, 15988, 17780, 19985, 22840, 31976, 35560, 39970, 45680, 63952, 71120, 72517, 79940, 145034, 159880, 290068, 319760, 362585, 507619, 580136, 725170, 1015238, 1160272, 1450340, 2030476, 2538095, 2900680, 4060952, 5076190, 5801360, 8121904, 10152380, 20304760, 40609520]

約数ペア:

[(1, 40609520), (2, 20304760), (4, 10152380), (5, 8121904), (7, 5801360), (8, 5076190), (10, 4060952), (14, 2900680), (16, 2538095), (20, 2030476), (28, 1450340), (35, 1160272), (40, 1015238), (56, 725170), (70, 580136), (80, 507619), (112, 362585), (127, 319760), (140, 290068), (254, 159880), (280, 145034), (508, 79940), (560, 72517), (571, 71120), (635, 63952), (889, 45680), (1016, 39970), (1142, 35560), (1270, 31976), (1778, 22840), (2032, 19985), (2284, 17780), (2540, 15988), (2855, 14224), (3556, 11420), (3997, 10160), (4445, 9136), (4568, 8890), (5080, 7994), (5710, 7112)]