18308920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2843}}^1$

素因数の和:2884

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 30835400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2843, 3220, 5686, 6440, 11372, 14215, 19901, 22744, 28430, 39802, 56860, 65389, 79604, 99505, 113720, 130778, 159208, 199010, 261556, 326945, 398020, 457723, 523112, 653890, 796040, 915446, 1307780, 1830892, 2288615, 2615560, 3661784, 4577230, 9154460, 18308920]

約数ペア:

[(1, 18308920), (2, 9154460), (4, 4577230), (5, 3661784), (7, 2615560), (8, 2288615), (10, 1830892), (14, 1307780), (20, 915446), (23, 796040), (28, 653890), (35, 523112), (40, 457723), (46, 398020), (56, 326945), (70, 261556), (92, 199010), (115, 159208), (140, 130778), (161, 113720), (184, 99505), (230, 79604), (280, 65389), (322, 56860), (460, 39802), (644, 28430), (805, 22744), (920, 19901), (1288, 14215), (1610, 11372), (2843, 6440), (3220, 5686)]