40266940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4051}}^1$

素因数の和:4138

約数の個数: 48

約数和(自身を含む): 98025984

約数和(自身を除く): 57759044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4051, 4970, 8102, 9940, 16204, 20255, 28357, 40510, 56714, 81020, 113428, 141785, 283570, 287621, 567140, 575242, 1150484, 1438105, 2013347, 2876210, 4026694, 5752420, 8053388, 10066735, 20133470, 40266940]

約数ペア:

[(1, 40266940), (2, 20133470), (4, 10066735), (5, 8053388), (7, 5752420), (10, 4026694), (14, 2876210), (20, 2013347), (28, 1438105), (35, 1150484), (70, 575242), (71, 567140), (140, 287621), (142, 283570), (284, 141785), (355, 113428), (497, 81020), (710, 56714), (994, 40510), (1420, 28357), (1988, 20255), (2485, 16204), (4051, 9940), (4970, 8102)]