30808520

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2011}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 69534720

約数和(自身を除く): 38726200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 2011, 3064, 3830, 4022, 7660, 8044, 10055, 15320, 16088, 20110, 40220, 80440, 770213, 1540426, 3080852, 3851065, 6161704, 7702130, 15404260, 30808520]

約数ペア:

[(1, 30808520), (2, 15404260), (4, 7702130), (5, 6161704), (8, 3851065), (10, 3080852), (20, 1540426), (40, 770213), (383, 80440), (766, 40220), (1532, 20110), (1915, 16088), (2011, 15320), (3064, 10055), (3830, 8044), (4022, 7660)]