77954720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25643}}^1$

素因数の和:25677

約数の個数: 48

約数和(自身を含む): 193868640

約数和(自身を除く): 115913920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 25643, 51286, 102572, 128215, 205144, 256430, 410288, 487217, 512860, 820576, 974434, 1025720, 1948868, 2051440, 2436085, 3897736, 4102880, 4872170, 7795472, 9744340, 15590944, 19488680, 38977360, 77954720]

約数ペア:

[(1, 77954720), (2, 38977360), (4, 19488680), (5, 15590944), (8, 9744340), (10, 7795472), (16, 4872170), (19, 4102880), (20, 3897736), (32, 2436085), (38, 2051440), (40, 1948868), (76, 1025720), (80, 974434), (95, 820576), (152, 512860), (160, 487217), (190, 410288), (304, 256430), (380, 205144), (608, 128215), (760, 102572), (1520, 51286), (3040, 25643)]