20110480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 51340464

約数和(自身を除く): 31229984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 317, 488, 520, 610, 634, 793, 976, 1040, 1220, 1268, 1585, 1586, 2440, 2536, 3170, 3172, 3965, 4121, 4880, 5072, 6340, 6344, 7930, 8242, 12680, 12688, 15860, 16484, 19337, 20605, 25360, 31720, 32968, 38674, 41210, 63440, 65936, 77348, 82420, 96685, 154696, 164840, 193370, 251381, 309392, 329680, 386740, 502762, 773480, 1005524, 1256905, 1546960, 2011048, 2513810, 4022096, 5027620, 10055240, 20110480]

約数ペア:

[(1, 20110480), (2, 10055240), (4, 5027620), (5, 4022096), (8, 2513810), (10, 2011048), (13, 1546960), (16, 1256905), (20, 1005524), (26, 773480), (40, 502762), (52, 386740), (61, 329680), (65, 309392), (80, 251381), (104, 193370), (122, 164840), (130, 154696), (208, 96685), (244, 82420), (260, 77348), (305, 65936), (317, 63440), (488, 41210), (520, 38674), (610, 32968), (634, 31720), (793, 25360), (976, 20605), (1040, 19337), (1220, 16484), (1268, 15860), (1585, 12688), (1586, 12680), (2440, 8242), (2536, 7930), (3170, 6344), (3172, 6340), (3965, 5072), (4121, 4880)]