408899530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{66923}}^1$

素因数の和:66990

約数の個数: 32

約数和(自身を含む): 809512704

約数和(自身を除く): 400613174

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 6110, 66923, 133846, 334615, 669230, 869999, 1739998, 3145381, 4349995, 6290762, 8699990, 15726905, 31453810, 40889953, 81779906, 204449765, 408899530]

約数ペア:

[(1, 408899530), (2, 204449765), (5, 81779906), (10, 40889953), (13, 31453810), (26, 15726905), (47, 8699990), (65, 6290762), (94, 4349995), (130, 3145381), (235, 1739998), (470, 869999), (611, 669230), (1222, 334615), (3055, 133846), (6110, 66923)]