55420640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31489}}^1$

素因数の和:31515

約数の個数: 48

約数和(自身を含む): 142838640

約数和(自身を除く): 87418000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 31489, 62978, 125956, 157445, 251912, 314890, 346379, 503824, 629780, 692758, 1007648, 1259560, 1385516, 1731895, 2519120, 2771032, 3463790, 5038240, 5542064, 6927580, 11084128, 13855160, 27710320, 55420640]

約数ペア:

[(1, 55420640), (2, 27710320), (4, 13855160), (5, 11084128), (8, 6927580), (10, 5542064), (11, 5038240), (16, 3463790), (20, 2771032), (22, 2519120), (32, 1731895), (40, 1385516), (44, 1259560), (55, 1007648), (80, 692758), (88, 629780), (110, 503824), (160, 346379), (176, 314890), (220, 251912), (352, 157445), (440, 125956), (880, 62978), (1760, 31489)]