40419280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2044

約数の個数: 80

約数和(自身を含む): 107028864

約数和(自身を除く): 66609584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1840, 1997, 2024, 2530, 3994, 4048, 5060, 7988, 9985, 10120, 15976, 19970, 20240, 21967, 31952, 39940, 43934, 45931, 79880, 87868, 91862, 109835, 159760, 175736, 183724, 219670, 229655, 351472, 367448, 439340, 459310, 505241, 734896, 878680, 918620, 1010482, 1757360, 1837240, 2020964, 2526205, 3674480, 4041928, 5052410, 8083856, 10104820, 20209640, 40419280]

約数ペア:

[(1, 40419280), (2, 20209640), (4, 10104820), (5, 8083856), (8, 5052410), (10, 4041928), (11, 3674480), (16, 2526205), (20, 2020964), (22, 1837240), (23, 1757360), (40, 1010482), (44, 918620), (46, 878680), (55, 734896), (80, 505241), (88, 459310), (92, 439340), (110, 367448), (115, 351472), (176, 229655), (184, 219670), (220, 183724), (230, 175736), (253, 159760), (368, 109835), (440, 91862), (460, 87868), (506, 79880), (880, 45931), (920, 43934), (1012, 39940), (1265, 31952), (1840, 21967), (1997, 20240), (2024, 19970), (2530, 15976), (3994, 10120), (4048, 9985), (5060, 7988)]