21851551160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1049}}^1\times {\mathrm{27409}}^1$

素因数の和:28488

約数の個数: 64

約数和(自身を含む): 51804900000

約数和(自身を除く): 29953348840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1049, 2098, 4196, 5245, 8392, 10490, 19931, 20980, 27409, 39862, 41960, 54818, 79724, 99655, 109636, 137045, 159448, 199310, 219272, 274090, 398620, 520771, 548180, 797240, 1041542, 1096360, 2083084, 2603855, 4166168, 5207710, 10415420, 20830840, 28752041, 57504082, 115008164, 143760205, 230016328, 287520410, 546288779, 575040820, 1092577558, 1150081640, 2185155116, 2731443895, 4370310232, 5462887790, 10925775580, 21851551160]

約数ペア:

[(1, 21851551160), (2, 10925775580), (4, 5462887790), (5, 4370310232), (8, 2731443895), (10, 2185155116), (19, 1150081640), (20, 1092577558), (38, 575040820), (40, 546288779), (76, 287520410), (95, 230016328), (152, 143760205), (190, 115008164), (380, 57504082), (760, 28752041), (1049, 20830840), (2098, 10415420), (4196, 5207710), (5245, 4166168), (8392, 2603855), (10490, 2083084), (19931, 1096360), (20980, 1041542), (27409, 797240), (39862, 548180), (41960, 520771), (54818, 398620), (79724, 274090), (99655, 219272), (109636, 199310), (137045, 159448)]