28942720

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1103}}^1$

素因数の和:1163

約数の個数: 64

約数和(自身を含む): 70943040

約数和(自身を除く): 42000320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1103, 1312, 1640, 2206, 2624, 3280, 4412, 5248, 5515, 6560, 8824, 11030, 13120, 17648, 22060, 26240, 35296, 44120, 45223, 70592, 88240, 90446, 141184, 176480, 180892, 226115, 352960, 361784, 452230, 705920, 723568, 904460, 1447136, 1808920, 2894272, 3617840, 5788544, 7235680, 14471360, 28942720]

約数ペア:

[(1, 28942720), (2, 14471360), (4, 7235680), (5, 5788544), (8, 3617840), (10, 2894272), (16, 1808920), (20, 1447136), (32, 904460), (40, 723568), (41, 705920), (64, 452230), (80, 361784), (82, 352960), (128, 226115), (160, 180892), (164, 176480), (205, 141184), (320, 90446), (328, 88240), (410, 70592), (640, 45223), (656, 44120), (820, 35296), (1103, 26240), (1312, 22060), (1640, 17648), (2206, 13120), (2624, 11030), (3280, 8824), (4412, 6560), (5248, 5515)]