205849880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1091}}^1$

素因数の和:1244

約数の個数: 64

約数和(自身を含む): 477640800

約数和(自身を除く): 271790920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 89, 106, 178, 212, 265, 356, 424, 445, 530, 712, 890, 1060, 1091, 1780, 2120, 2182, 3560, 4364, 4717, 5455, 8728, 9434, 10910, 18868, 21820, 23585, 37736, 43640, 47170, 57823, 94340, 97099, 115646, 188680, 194198, 231292, 289115, 388396, 462584, 485495, 578230, 776792, 970990, 1156460, 1941980, 2312920, 3883960, 5146247, 10292494, 20584988, 25731235, 41169976, 51462470, 102924940, 205849880]

約数ペア:

[(1, 205849880), (2, 102924940), (4, 51462470), (5, 41169976), (8, 25731235), (10, 20584988), (20, 10292494), (40, 5146247), (53, 3883960), (89, 2312920), (106, 1941980), (178, 1156460), (212, 970990), (265, 776792), (356, 578230), (424, 485495), (445, 462584), (530, 388396), (712, 289115), (890, 231292), (1060, 194198), (1091, 188680), (1780, 115646), (2120, 97099), (2182, 94340), (3560, 57823), (4364, 47170), (4717, 43640), (5455, 37736), (8728, 23585), (9434, 21820), (10910, 18868)]