56640760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1181}}^1$

素因数の和:1312

約数の個数: 64

約数和(自身を含む): 140421600

約数和(自身を除く): 83780840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 1090, 1181, 1199, 2180, 2362, 2398, 4360, 4724, 4796, 5905, 5995, 9448, 9592, 11810, 11990, 12991, 23620, 23980, 25982, 47240, 47960, 51964, 64955, 103928, 128729, 129910, 257458, 259820, 514916, 519640, 643645, 1029832, 1287290, 1416019, 2574580, 2832038, 5149160, 5664076, 7080095, 11328152, 14160190, 28320380, 56640760]

約数ペア:

[(1, 56640760), (2, 28320380), (4, 14160190), (5, 11328152), (8, 7080095), (10, 5664076), (11, 5149160), (20, 2832038), (22, 2574580), (40, 1416019), (44, 1287290), (55, 1029832), (88, 643645), (109, 519640), (110, 514916), (218, 259820), (220, 257458), (436, 129910), (440, 128729), (545, 103928), (872, 64955), (1090, 51964), (1181, 47960), (1199, 47240), (2180, 25982), (2362, 23980), (2398, 23620), (4360, 12991), (4724, 11990), (4796, 11810), (5905, 9592), (5995, 9448)]