39940940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1031}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 91022400

約数和(自身を除く): 51081460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 745, 1031, 1490, 1937, 2062, 2980, 3874, 4124, 5155, 7748, 9685, 10310, 13403, 19370, 20620, 26806, 38740, 53612, 67015, 134030, 153619, 268060, 307238, 614476, 768095, 1536190, 1997047, 3072380, 3994094, 7988188, 9985235, 19970470, 39940940]

約数ペア:

[(1, 39940940), (2, 19970470), (4, 9985235), (5, 7988188), (10, 3994094), (13, 3072380), (20, 1997047), (26, 1536190), (52, 768095), (65, 614476), (130, 307238), (149, 268060), (260, 153619), (298, 134030), (596, 67015), (745, 53612), (1031, 38740), (1490, 26806), (1937, 20620), (2062, 19370), (2980, 13403), (3874, 10310), (4124, 9685), (5155, 7748)]