18603760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 31393040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 239, 278, 280, 478, 556, 560, 695, 956, 973, 1112, 1195, 1390, 1673, 1912, 1946, 2224, 2390, 2780, 3346, 3824, 3892, 4780, 4865, 5560, 6692, 7784, 8365, 9560, 9730, 11120, 13384, 15568, 16730, 19120, 19460, 26768, 33221, 33460, 38920, 66442, 66920, 77840, 132884, 133840, 166105, 232547, 265768, 332210, 465094, 531536, 664420, 930188, 1162735, 1328840, 1860376, 2325470, 2657680, 3720752, 4650940, 9301880, 18603760]

約数ペア:

[(1, 18603760), (2, 9301880), (4, 4650940), (5, 3720752), (7, 2657680), (8, 2325470), (10, 1860376), (14, 1328840), (16, 1162735), (20, 930188), (28, 664420), (35, 531536), (40, 465094), (56, 332210), (70, 265768), (80, 232547), (112, 166105), (139, 133840), (140, 132884), (239, 77840), (278, 66920), (280, 66442), (478, 38920), (556, 33460), (560, 33221), (695, 26768), (956, 19460), (973, 19120), (1112, 16730), (1195, 15568), (1390, 13384), (1673, 11120), (1912, 9730), (1946, 9560), (2224, 8365), (2390, 7784), (2780, 6692), (3346, 5560), (3824, 4865), (3892, 4780)]