2064020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 5177088

約数和(自身を除く): 3113068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 641, 644, 805, 1282, 1610, 2564, 3205, 3220, 4487, 6410, 8974, 12820, 14743, 17948, 22435, 29486, 44870, 58972, 73715, 89740, 103201, 147430, 206402, 294860, 412804, 516005, 1032010, 2064020]

約数ペア:

[(1, 2064020), (2, 1032010), (4, 516005), (5, 412804), (7, 294860), (10, 206402), (14, 147430), (20, 103201), (23, 89740), (28, 73715), (35, 58972), (46, 44870), (70, 29486), (92, 22435), (115, 17948), (140, 14743), (161, 12820), (230, 8974), (322, 6410), (460, 4487), (641, 3220), (644, 3205), (805, 2564), (1282, 1610)]