31820440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 76140000

約数和(自身を除く): 44319560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 281, 298, 380, 562, 596, 745, 760, 1124, 1192, 1405, 1490, 2248, 2810, 2831, 2980, 5339, 5620, 5662, 5960, 10678, 11240, 11324, 14155, 21356, 22648, 26695, 28310, 41869, 42712, 53390, 56620, 83738, 106780, 113240, 167476, 209345, 213560, 334952, 418690, 795511, 837380, 1591022, 1674760, 3182044, 3977555, 6364088, 7955110, 15910220, 31820440]

約数ペア:

[(1, 31820440), (2, 15910220), (4, 7955110), (5, 6364088), (8, 3977555), (10, 3182044), (19, 1674760), (20, 1591022), (38, 837380), (40, 795511), (76, 418690), (95, 334952), (149, 213560), (152, 209345), (190, 167476), (281, 113240), (298, 106780), (380, 83738), (562, 56620), (596, 53390), (745, 42712), (760, 41869), (1124, 28310), (1192, 26695), (1405, 22648), (1490, 21356), (2248, 14155), (2810, 11324), (2831, 11240), (2980, 10678), (5339, 5960), (5620, 5662)]