221482880

素因数分解:

$2^7\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1277}}^1$

素因数の和:1567

約数の個数: 64

約数和(自身を含む): 531852480

約数和(自身を除く): 310369600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 271, 320, 542, 640, 1084, 1277, 1355, 2168, 2554, 2710, 4336, 5108, 5420, 6385, 8672, 10216, 10840, 12770, 17344, 20432, 21680, 25540, 34688, 40864, 43360, 51080, 81728, 86720, 102160, 163456, 173440, 204320, 346067, 408640, 692134, 817280, 1384268, 1730335, 2768536, 3460670, 5537072, 6921340, 11074144, 13842680, 22148288, 27685360, 44296576, 55370720, 110741440, 221482880]

約数ペア:

[(1, 221482880), (2, 110741440), (4, 55370720), (5, 44296576), (8, 27685360), (10, 22148288), (16, 13842680), (20, 11074144), (32, 6921340), (40, 5537072), (64, 3460670), (80, 2768536), (128, 1730335), (160, 1384268), (271, 817280), (320, 692134), (542, 408640), (640, 346067), (1084, 204320), (1277, 173440), (1355, 163456), (2168, 102160), (2554, 86720), (2710, 81728), (4336, 51080), (5108, 43360), (5420, 40864), (6385, 34688), (8672, 25540), (10216, 21680), (10840, 20432), (12770, 17344)]