28613080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 67132800

約数和(自身を除く): 38519720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 164, 205, 239, 292, 328, 365, 410, 478, 584, 730, 820, 956, 1195, 1460, 1640, 1912, 2390, 2920, 2993, 4780, 5986, 9560, 9799, 11972, 14965, 17447, 19598, 23944, 29930, 34894, 39196, 48995, 59860, 69788, 78392, 87235, 97990, 119720, 139576, 174470, 195980, 348940, 391960, 697880, 715327, 1430654, 2861308, 3576635, 5722616, 7153270, 14306540, 28613080]

約数ペア:

[(1, 28613080), (2, 14306540), (4, 7153270), (5, 5722616), (8, 3576635), (10, 2861308), (20, 1430654), (40, 715327), (41, 697880), (73, 391960), (82, 348940), (146, 195980), (164, 174470), (205, 139576), (239, 119720), (292, 97990), (328, 87235), (365, 78392), (410, 69788), (478, 59860), (584, 48995), (730, 39196), (820, 34894), (956, 29930), (1195, 23944), (1460, 19598), (1640, 17447), (1912, 14965), (2390, 11972), (2920, 9799), (2993, 9560), (4780, 5986)]