161643780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4027}}^1$

素因数の和:4265

約数の個数: 72

約数和(自身を含む): 492640512

約数和(自身を除く): 330996732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 892, 1115, 1338, 2007, 2230, 2676, 3345, 4014, 4027, 4460, 6690, 8028, 8054, 10035, 12081, 13380, 16108, 20070, 20135, 24162, 36243, 40140, 40270, 48324, 60405, 72486, 80540, 120810, 144972, 181215, 241620, 362430, 724860, 898021, 1796042, 2694063, 3592084, 4490105, 5388126, 8082189, 8980210, 10776252, 13470315, 16164378, 17960420, 26940630, 32328756, 40410945, 53881260, 80821890, 161643780]

約数ペア:

[(1, 161643780), (2, 80821890), (3, 53881260), (4, 40410945), (5, 32328756), (6, 26940630), (9, 17960420), (10, 16164378), (12, 13470315), (15, 10776252), (18, 8980210), (20, 8082189), (30, 5388126), (36, 4490105), (45, 3592084), (60, 2694063), (90, 1796042), (180, 898021), (223, 724860), (446, 362430), (669, 241620), (892, 181215), (1115, 144972), (1338, 120810), (2007, 80540), (2230, 72486), (2676, 60405), (3345, 48324), (4014, 40270), (4027, 40140), (4460, 36243), (6690, 24162), (8028, 20135), (8054, 20070), (10035, 16108), (12081, 13380)]