6443240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2039}}^1$

素因数の和:2129

約数の個数: 32

約数和(自身を含む): 14688000

約数和(自身を除く): 8244760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2039, 3160, 4078, 8156, 10195, 16312, 20390, 40780, 81560, 161081, 322162, 644324, 805405, 1288648, 1610810, 3221620, 6443240]

約数ペア:

[(1, 6443240), (2, 3221620), (4, 1610810), (5, 1288648), (8, 805405), (10, 644324), (20, 322162), (40, 161081), (79, 81560), (158, 40780), (316, 20390), (395, 16312), (632, 10195), (790, 8156), (1580, 4078), (2039, 3160)]