318446840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{6869}}^1$

素因数の和:6960

約数の個数: 64

約数和(自身を含む): 766692000

約数和(自身を除く): 448245160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 190, 244, 305, 380, 488, 610, 760, 1159, 1220, 2318, 2440, 4636, 5795, 6869, 9272, 11590, 13738, 23180, 27476, 34345, 46360, 54952, 68690, 130511, 137380, 261022, 274760, 419009, 522044, 652555, 838018, 1044088, 1305110, 1676036, 2095045, 2610220, 3352072, 4190090, 5220440, 7961171, 8380180, 15922342, 16760360, 31844684, 39805855, 63689368, 79611710, 159223420, 318446840]

約数ペア:

[(1, 318446840), (2, 159223420), (4, 79611710), (5, 63689368), (8, 39805855), (10, 31844684), (19, 16760360), (20, 15922342), (38, 8380180), (40, 7961171), (61, 5220440), (76, 4190090), (95, 3352072), (122, 2610220), (152, 2095045), (190, 1676036), (244, 1305110), (305, 1044088), (380, 838018), (488, 652555), (610, 522044), (760, 419009), (1159, 274760), (1220, 261022), (2318, 137380), (2440, 130511), (4636, 68690), (5795, 54952), (6869, 46360), (9272, 34345), (11590, 27476), (13738, 23180)]