390017920

素因数分解:

$2^7\times 5^1\times {\mathrm{609403}}^1$

素因数の和:609422

約数の個数: 32

約数和(自身を含む): 932388120

約数和(自身を除く): 542370200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 609403, 1218806, 2437612, 3047015, 4875224, 6094030, 9750448, 12188060, 19500896, 24376120, 39001792, 48752240, 78003584, 97504480, 195008960, 390017920]

約数ペア:

[(1, 390017920), (2, 195008960), (4, 97504480), (5, 78003584), (8, 48752240), (10, 39001792), (16, 24376120), (20, 19500896), (32, 12188060), (40, 9750448), (64, 6094030), (80, 4875224), (128, 3047015), (160, 2437612), (320, 1218806), (640, 609403)]