20375504

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:387

約数の個数: 40

約数和(自身を含む): 40726560

約数和(自身を除く): 20351056

約数列:

[1, 2, 4, 8, 16, 67, 83, 134, 166, 229, 268, 332, 458, 536, 664, 916, 1072, 1328, 1832, 3664, 5561, 11122, 15343, 19007, 22244, 30686, 38014, 44488, 61372, 76028, 88976, 122744, 152056, 245488, 304112, 1273469, 2546938, 5093876, 10187752, 20375504]

約数ペア:

[(1, 20375504), (2, 10187752), (4, 5093876), (8, 2546938), (16, 1273469), (67, 304112), (83, 245488), (134, 152056), (166, 122744), (229, 88976), (268, 76028), (332, 61372), (458, 44488), (536, 38014), (664, 30686), (916, 22244), (1072, 19007), (1328, 15343), (1832, 11122), (3664, 5561)]