28391680

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{541}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 69794424

約数和(自身を除く): 41402744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 541, 640, 656, 820, 1082, 1280, 1312, 1640, 2164, 2624, 2705, 3280, 4328, 5248, 5410, 6560, 8656, 10496, 10820, 13120, 17312, 21640, 22181, 26240, 34624, 43280, 44362, 52480, 69248, 86560, 88724, 110905, 138496, 173120, 177448, 221810, 346240, 354896, 443620, 692480, 709792, 887240, 1419584, 1774480, 2839168, 3548960, 5678336, 7097920, 14195840, 28391680]

約数ペア:

[(1, 28391680), (2, 14195840), (4, 7097920), (5, 5678336), (8, 3548960), (10, 2839168), (16, 1774480), (20, 1419584), (32, 887240), (40, 709792), (41, 692480), (64, 443620), (80, 354896), (82, 346240), (128, 221810), (160, 177448), (164, 173120), (205, 138496), (256, 110905), (320, 88724), (328, 86560), (410, 69248), (541, 52480), (640, 44362), (656, 43280), (820, 34624), (1082, 26240), (1280, 22181), (1312, 21640), (1640, 17312), (2164, 13120), (2624, 10820), (2705, 10496), (3280, 8656), (4328, 6560), (5248, 5410)]