20197594624

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{90271}}^1$

素因数の和:90331

約数の個数: 80

約数和(自身を含む): 44327162880

約数和(自身を除く): 24129568256

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 256, 304, 368, 437, 512, 608, 736, 874, 1216, 1472, 1748, 2432, 2944, 3496, 4864, 5888, 6992, 9728, 11776, 13984, 27968, 55936, 90271, 111872, 180542, 223744, 361084, 722168, 1444336, 1715149, 2076233, 2888672, 3430298, 4152466, 5777344, 6860596, 8304932, 11554688, 13721192, 16609864, 23109376, 27442384, 33219728, 39448427, 46218752, 54884768, 66439456, 78896854, 109769536, 132878912, 157793708, 219539072, 265757824, 315587416, 439078144, 531515648, 631174832, 878156288, 1063031296, 1262349664, 2524699328, 5049398656, 10098797312, 20197594624]

約数ペア:

[(1, 20197594624), (2, 10098797312), (4, 5049398656), (8, 2524699328), (16, 1262349664), (19, 1063031296), (23, 878156288), (32, 631174832), (38, 531515648), (46, 439078144), (64, 315587416), (76, 265757824), (92, 219539072), (128, 157793708), (152, 132878912), (184, 109769536), (256, 78896854), (304, 66439456), (368, 54884768), (437, 46218752), (512, 39448427), (608, 33219728), (736, 27442384), (874, 23109376), (1216, 16609864), (1472, 13721192), (1748, 11554688), (2432, 8304932), (2944, 6860596), (3496, 5777344), (4864, 4152466), (5888, 3430298), (6992, 2888672), (9728, 2076233), (11776, 1715149), (13984, 1444336), (27968, 722168), (55936, 361084), (90271, 223744), (111872, 180542)]