91403980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 198132480

約数和(自身を除く): 106728500

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 236, 284, 295, 355, 590, 710, 1091, 1180, 1420, 2182, 4189, 4364, 5455, 8378, 10910, 16756, 20945, 21820, 41890, 64369, 77461, 83780, 128738, 154922, 257476, 309844, 321845, 387305, 643690, 774610, 1287380, 1549220, 4570199, 9140398, 18280796, 22850995, 45701990, 91403980]

約数ペア:

[(1, 91403980), (2, 45701990), (4, 22850995), (5, 18280796), (10, 9140398), (20, 4570199), (59, 1549220), (71, 1287380), (118, 774610), (142, 643690), (236, 387305), (284, 321845), (295, 309844), (355, 257476), (590, 154922), (710, 128738), (1091, 83780), (1180, 77461), (1420, 64369), (2182, 41890), (4189, 21820), (4364, 20945), (5455, 16756), (8378, 10910)]