30989960

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10613}}^1$

素因数の和:10697

約数の個数: 32

約数和(自身を含む): 70689240

約数和(自身を除く): 39699280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 10613, 21226, 42452, 53065, 84904, 106130, 212260, 424520, 774749, 1549498, 3098996, 3873745, 6197992, 7747490, 15494980, 30989960]

約数ペア:

[(1, 30989960), (2, 15494980), (4, 7747490), (5, 6197992), (8, 3873745), (10, 3098996), (20, 1549498), (40, 774749), (73, 424520), (146, 212260), (292, 106130), (365, 84904), (584, 53065), (730, 42452), (1460, 21226), (2920, 10613)]