81002800

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{6983}}^1$

素因数の和:7030

約数の個数: 60

約数和(自身を含む): 201348720

約数和(自身を除く): 120345920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 2320, 2900, 5800, 6983, 11600, 13966, 27932, 34915, 55864, 69830, 111728, 139660, 174575, 202507, 279320, 349150, 405014, 558640, 698300, 810028, 1012535, 1396600, 1620056, 2025070, 2793200, 3240112, 4050140, 5062675, 8100280, 10125350, 16200560, 20250700, 40501400, 81002800]

約数ペア:

[(1, 81002800), (2, 40501400), (4, 20250700), (5, 16200560), (8, 10125350), (10, 8100280), (16, 5062675), (20, 4050140), (25, 3240112), (29, 2793200), (40, 2025070), (50, 1620056), (58, 1396600), (80, 1012535), (100, 810028), (116, 698300), (145, 558640), (200, 405014), (232, 349150), (290, 279320), (400, 202507), (464, 174575), (580, 139660), (725, 111728), (1160, 69830), (1450, 55864), (2320, 34915), (2900, 27932), (5800, 13966), (6983, 11600)]