217631570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{21191}}^1$

素因数の和:21290

約数の個数: 32

約数和(自身を含む): 427230720

約数和(自身を除く): 209599150

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 5135, 10270, 21191, 42382, 105955, 211910, 275483, 550966, 1377415, 1674089, 2754830, 3348178, 8370445, 16740890, 21763157, 43526314, 108815785, 217631570]

約数ペア:

[(1, 217631570), (2, 108815785), (5, 43526314), (10, 21763157), (13, 16740890), (26, 8370445), (65, 3348178), (79, 2754830), (130, 1674089), (158, 1377415), (395, 550966), (790, 275483), (1027, 211910), (2054, 105955), (5135, 42382), (10270, 21191)]