17420720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 43494240

約数和(自身を除く): 26073520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 73, 76, 80, 95, 146, 152, 157, 190, 292, 304, 314, 365, 380, 584, 628, 730, 760, 785, 1168, 1256, 1387, 1460, 1520, 1570, 2512, 2774, 2920, 2983, 3140, 5548, 5840, 5966, 6280, 6935, 11096, 11461, 11932, 12560, 13870, 14915, 22192, 22922, 23864, 27740, 29830, 45844, 47728, 55480, 57305, 59660, 91688, 110960, 114610, 119320, 183376, 217759, 229220, 238640, 435518, 458440, 871036, 916880, 1088795, 1742072, 2177590, 3484144, 4355180, 8710360, 17420720]

約数ペア:

[(1, 17420720), (2, 8710360), (4, 4355180), (5, 3484144), (8, 2177590), (10, 1742072), (16, 1088795), (19, 916880), (20, 871036), (38, 458440), (40, 435518), (73, 238640), (76, 229220), (80, 217759), (95, 183376), (146, 119320), (152, 114610), (157, 110960), (190, 91688), (292, 59660), (304, 57305), (314, 55480), (365, 47728), (380, 45844), (584, 29830), (628, 27740), (730, 23864), (760, 22922), (785, 22192), (1168, 14915), (1256, 13870), (1387, 12560), (1460, 11932), (1520, 11461), (1570, 11096), (2512, 6935), (2774, 6280), (2920, 5966), (2983, 5840), (3140, 5548)]