154880

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2$

素因数の和:43

約数の個数: 54

約数和(自身を含む): 407778

約数和(自身を除く): 252898

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 256, 320, 352, 440, 484, 605, 640, 704, 880, 968, 1210, 1280, 1408, 1760, 1936, 2420, 2816, 3520, 3872, 4840, 7040, 7744, 9680, 14080, 15488, 19360, 30976, 38720, 77440, 154880]

約数ペア:

[(1, 154880), (2, 77440), (4, 38720), (5, 30976), (8, 19360), (10, 15488), (11, 14080), (16, 9680), (20, 7744), (22, 7040), (32, 4840), (40, 3872), (44, 3520), (55, 2816), (64, 2420), (80, 1936), (88, 1760), (110, 1408), (121, 1280), (128, 1210), (160, 968), (176, 880), (220, 704), (242, 640), (256, 605), (320, 484), (352, 440)]