64539440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115249}}^1$

素因数の和:115269

約数の個数: 40

約数和(自身を含む): 171492000

約数和(自身を除く): 106952560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115249, 230498, 460996, 576245, 806743, 921992, 1152490, 1613486, 1843984, 2304980, 3226972, 4033715, 4609960, 6453944, 8067430, 9219920, 12907888, 16134860, 32269720, 64539440]

約数ペア:

[(1, 64539440), (2, 32269720), (4, 16134860), (5, 12907888), (7, 9219920), (8, 8067430), (10, 6453944), (14, 4609960), (16, 4033715), (20, 3226972), (28, 2304980), (35, 1843984), (40, 1613486), (56, 1152490), (70, 921992), (80, 806743), (112, 576245), (140, 460996), (280, 230498), (560, 115249)]