1818865280

素因数分解:

$2^7\times 5^1\times {\mathrm{271}}^1\times {\mathrm{10487}}^1$

素因数の和:10777

約数の個数: 64

約数和(自身を含む): 4364686080

約数和(自身を除く): 2545820800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 271, 320, 542, 640, 1084, 1355, 2168, 2710, 4336, 5420, 8672, 10487, 10840, 17344, 20974, 21680, 34688, 41948, 43360, 52435, 83896, 86720, 104870, 167792, 173440, 209740, 335584, 419480, 671168, 838960, 1342336, 1677920, 2841977, 3355840, 5683954, 6711680, 11367908, 14209885, 22735816, 28419770, 45471632, 56839540, 90943264, 113679080, 181886528, 227358160, 363773056, 454716320, 909432640, 1818865280]

約数ペア:

[(1, 1818865280), (2, 909432640), (4, 454716320), (5, 363773056), (8, 227358160), (10, 181886528), (16, 113679080), (20, 90943264), (32, 56839540), (40, 45471632), (64, 28419770), (80, 22735816), (128, 14209885), (160, 11367908), (271, 6711680), (320, 5683954), (542, 3355840), (640, 2841977), (1084, 1677920), (1355, 1342336), (2168, 838960), (2710, 671168), (4336, 419480), (5420, 335584), (8672, 209740), (10487, 173440), (10840, 167792), (17344, 104870), (20974, 86720), (21680, 83896), (34688, 52435), (41948, 43360)]