290089386

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{139}}^1$

素因数の和:312

約数の個数: 72

約数和(自身を含む): 670007520

約数和(自身を除く): 379918134

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 71, 138, 139, 142, 207, 213, 278, 414, 417, 426, 639, 834, 1251, 1278, 1633, 2502, 3197, 3266, 4899, 5041, 6394, 9591, 9798, 9869, 10082, 14697, 15123, 19182, 19738, 28773, 29394, 29607, 30246, 45369, 57546, 59214, 88821, 90738, 115943, 177642, 226987, 231886, 347829, 453974, 680961, 695658, 700699, 1043487, 1361922, 1401398, 2042883, 2086974, 2102097, 4085766, 4204194, 6306291, 12612582, 16116077, 32232154, 48348231, 96696462, 145044693, 290089386]

約数ペア:

[(1, 290089386), (2, 145044693), (3, 96696462), (6, 48348231), (9, 32232154), (18, 16116077), (23, 12612582), (46, 6306291), (69, 4204194), (71, 4085766), (138, 2102097), (139, 2086974), (142, 2042883), (207, 1401398), (213, 1361922), (278, 1043487), (414, 700699), (417, 695658), (426, 680961), (639, 453974), (834, 347829), (1251, 231886), (1278, 226987), (1633, 177642), (2502, 115943), (3197, 90738), (3266, 88821), (4899, 59214), (5041, 57546), (6394, 45369), (9591, 30246), (9798, 29607), (9869, 29394), (10082, 28773), (14697, 19738), (15123, 19182)]