18796040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 44195760

約数和(自身を除く): 25399720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 157, 164, 205, 292, 314, 328, 365, 410, 584, 628, 730, 785, 820, 1256, 1460, 1570, 1640, 2920, 2993, 3140, 5986, 6280, 6437, 11461, 11972, 12874, 14965, 22922, 23944, 25748, 29930, 32185, 45844, 51496, 57305, 59860, 64370, 91688, 114610, 119720, 128740, 229220, 257480, 458440, 469901, 939802, 1879604, 2349505, 3759208, 4699010, 9398020, 18796040]

約数ペア:

[(1, 18796040), (2, 9398020), (4, 4699010), (5, 3759208), (8, 2349505), (10, 1879604), (20, 939802), (40, 469901), (41, 458440), (73, 257480), (82, 229220), (146, 128740), (157, 119720), (164, 114610), (205, 91688), (292, 64370), (314, 59860), (328, 57305), (365, 51496), (410, 45844), (584, 32185), (628, 29930), (730, 25748), (785, 23944), (820, 22922), (1256, 14965), (1460, 12874), (1570, 11972), (1640, 11461), (2920, 6437), (2993, 6280), (3140, 5986)]