10818980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 24312960

約数和(自身を除く): 13493980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 401, 710, 802, 1349, 1420, 1604, 2005, 2698, 4010, 5396, 6745, 7619, 8020, 13490, 15238, 26980, 28471, 30476, 38095, 56942, 76190, 113884, 142355, 152380, 284710, 540949, 569420, 1081898, 2163796, 2704745, 5409490, 10818980]

約数ペア:

[(1, 10818980), (2, 5409490), (4, 2704745), (5, 2163796), (10, 1081898), (19, 569420), (20, 540949), (38, 284710), (71, 152380), (76, 142355), (95, 113884), (142, 76190), (190, 56942), (284, 38095), (355, 30476), (380, 28471), (401, 26980), (710, 15238), (802, 13490), (1349, 8020), (1420, 7619), (1604, 6745), (2005, 5396), (2698, 4010)]