2080486480

素因数分解:

$2^4\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{16183}}^1$

素因数の和:17803

約数の個数: 40

約数和(自身を含む): 4840440192

約数和(自身を除く): 2759953712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1607, 3214, 6428, 8035, 12856, 16070, 16183, 25712, 32140, 32366, 64280, 64732, 80915, 128560, 129464, 161830, 258928, 323660, 647320, 1294640, 26006081, 52012162, 104024324, 130030405, 208048648, 260060810, 416097296, 520121620, 1040243240, 2080486480]

約数ペア:

[(1, 2080486480), (2, 1040243240), (4, 520121620), (5, 416097296), (8, 260060810), (10, 208048648), (16, 130030405), (20, 104024324), (40, 52012162), (80, 26006081), (1607, 1294640), (3214, 647320), (6428, 323660), (8035, 258928), (12856, 161830), (16070, 129464), (16183, 128560), (25712, 80915), (32140, 64732), (32366, 64280)]