20121680440

素因数分解:

$2^3\times 5^1\times {\mathrm{15271}}^1\times {\mathrm{32941}}^1$

素因数の和:48223

約数の個数: 32

約数和(自身を含む): 45278120160

約数和(自身を除く): 25156439720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 15271, 30542, 32941, 61084, 65882, 76355, 122168, 131764, 152710, 164705, 263528, 305420, 329410, 610840, 658820, 1317640, 503042011, 1006084022, 2012168044, 2515210055, 4024336088, 5030420110, 10060840220, 20121680440]

約数ペア:

[(1, 20121680440), (2, 10060840220), (4, 5030420110), (5, 4024336088), (8, 2515210055), (10, 2012168044), (20, 1006084022), (40, 503042011), (15271, 1317640), (30542, 658820), (32941, 610840), (61084, 329410), (65882, 305420), (76355, 263528), (122168, 164705), (131764, 152710)]