221576720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{74857}}^1$

素因数の和:74907

約数の個数: 40

約数和(自身を含む): 529096344

約数和(自身を除く): 307519624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 74857, 149714, 299428, 374285, 598856, 748570, 1197712, 1497140, 2769709, 2994280, 5539418, 5988560, 11078836, 13848545, 22157672, 27697090, 44315344, 55394180, 110788360, 221576720]

約数ペア:

[(1, 221576720), (2, 110788360), (4, 55394180), (5, 44315344), (8, 27697090), (10, 22157672), (16, 13848545), (20, 11078836), (37, 5988560), (40, 5539418), (74, 2994280), (80, 2769709), (148, 1497140), (185, 1197712), (296, 748570), (370, 598856), (592, 374285), (740, 299428), (1480, 149714), (2960, 74857)]