30140920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10613}}^1$

素因数の和:10695

約数の個数: 32

約数和(自身を含む): 68778720

約数和(自身を除く): 38637800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10613, 21226, 42452, 53065, 84904, 106130, 212260, 424520, 753523, 1507046, 3014092, 3767615, 6028184, 7535230, 15070460, 30140920]

約数ペア:

[(1, 30140920), (2, 15070460), (4, 7535230), (5, 6028184), (8, 3767615), (10, 3014092), (20, 1507046), (40, 753523), (71, 424520), (142, 212260), (284, 106130), (355, 84904), (568, 53065), (710, 42452), (1420, 21226), (2840, 10613)]