641591892

素因数分解:

$2^2\times 3^2\times {\mathrm{227}}^1\times {\mathrm{78511}}^1$

素因数の和:78748

約数の個数: 36

約数和(自身を含む): 1628966976

約数和(自身を除く): 987375084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 227, 454, 681, 908, 1362, 2043, 2724, 4086, 8172, 78511, 157022, 235533, 314044, 471066, 706599, 942132, 1413198, 2826396, 17821997, 35643994, 53465991, 71287988, 106931982, 160397973, 213863964, 320795946, 641591892]

約数ペア:

[(1, 641591892), (2, 320795946), (3, 213863964), (4, 160397973), (6, 106931982), (9, 71287988), (12, 53465991), (18, 35643994), (36, 17821997), (227, 2826396), (454, 1413198), (681, 942132), (908, 706599), (1362, 471066), (2043, 314044), (2724, 235533), (4086, 157022), (8172, 78511)]