638963964

素因数分解:

$2^2\times 3^4\times {\mathrm{1972111}}^1$

素因数の和:1972127

約数の個数: 30

約数和(自身を含む): 1670378864

約数和(自身を除く): 1031414900

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 1972111, 3944222, 5916333, 7888444, 11832666, 17748999, 23665332, 35497998, 53246997, 70995996, 106493994, 159740991, 212987988, 319481982, 638963964]

約数ペア:

[(1, 638963964), (2, 319481982), (3, 212987988), (4, 159740991), (6, 106493994), (9, 70995996), (12, 53246997), (18, 35497998), (27, 23665332), (36, 17748999), (54, 11832666), (81, 7888444), (108, 5916333), (162, 3944222), (324, 1972111)]