12886480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2039}}^1$

素因数の和:2131

約数の個数: 40

約数和(自身を含む): 30355200

約数和(自身を除く): 17468720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2039, 3160, 4078, 6320, 8156, 10195, 16312, 20390, 32624, 40780, 81560, 161081, 163120, 322162, 644324, 805405, 1288648, 1610810, 2577296, 3221620, 6443240, 12886480]

約数ペア:

[(1, 12886480), (2, 6443240), (4, 3221620), (5, 2577296), (8, 1610810), (10, 1288648), (16, 805405), (20, 644324), (40, 322162), (79, 163120), (80, 161081), (158, 81560), (316, 40780), (395, 32624), (632, 20390), (790, 16312), (1264, 10195), (1580, 8156), (2039, 6320), (3160, 4078)]