31909670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{631}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 62112960

約数和(自身を除く): 30203290

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 389, 631, 778, 1262, 1945, 3155, 3890, 5057, 6310, 8203, 10114, 16406, 25285, 41015, 50570, 82030, 245459, 490918, 1227295, 2454590, 3190967, 6381934, 15954835, 31909670]

約数ペア:

[(1, 31909670), (2, 15954835), (5, 6381934), (10, 3190967), (13, 2454590), (26, 1227295), (65, 490918), (130, 245459), (389, 82030), (631, 50570), (778, 41015), (1262, 25285), (1945, 16406), (3155, 10114), (3890, 8203), (5057, 6310)]