2640630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 6842880

約数和(自身を除く): 4202250

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 69, 86, 89, 115, 129, 138, 178, 215, 230, 258, 267, 345, 430, 445, 534, 645, 690, 890, 989, 1290, 1335, 1978, 2047, 2670, 2967, 3827, 4094, 4945, 5934, 6141, 7654, 9890, 10235, 11481, 12282, 14835, 19135, 20470, 22962, 29670, 30705, 38270, 57405, 61410, 88021, 114810, 176042, 264063, 440105, 528126, 880210, 1320315, 2640630]

約数ペア:

[(1, 2640630), (2, 1320315), (3, 880210), (5, 528126), (6, 440105), (10, 264063), (15, 176042), (23, 114810), (30, 88021), (43, 61410), (46, 57405), (69, 38270), (86, 30705), (89, 29670), (115, 22962), (129, 20470), (138, 19135), (178, 14835), (215, 12282), (230, 11481), (258, 10235), (267, 9890), (345, 7654), (430, 6141), (445, 5934), (534, 4945), (645, 4094), (690, 3827), (890, 2967), (989, 2670), (1290, 2047), (1335, 1978)]