28160755

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 16629005

約数列:

[1, 5, 7, 17, 19, 35, 47, 53, 85, 95, 119, 133, 235, 265, 323, 329, 371, 595, 665, 799, 893, 901, 1007, 1615, 1645, 1855, 2261, 2491, 3995, 4465, 4505, 5035, 5593, 6251, 6307, 7049, 11305, 12455, 15181, 17119, 17437, 27965, 31255, 31535, 35245, 42347, 47329, 75905, 85595, 87185, 106267, 119833, 211735, 236645, 296429, 331303, 531335, 599165, 804593, 1482145, 1656515, 4022965, 5632151, 28160755]

約数ペア:

[(1, 28160755), (5, 5632151), (7, 4022965), (17, 1656515), (19, 1482145), (35, 804593), (47, 599165), (53, 531335), (85, 331303), (95, 296429), (119, 236645), (133, 211735), (235, 119833), (265, 106267), (323, 87185), (329, 85595), (371, 75905), (595, 47329), (665, 42347), (799, 35245), (893, 31535), (901, 31255), (1007, 27965), (1615, 17437), (1645, 17119), (1855, 15181), (2261, 12455), (2491, 11305), (3995, 7049), (4465, 6307), (4505, 6251), (5035, 5593)]