28791455

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 47029248

約数和(自身を除く): 18237793

約数列:

[1, 5, 7, 11, 17, 35, 53, 55, 77, 83, 85, 119, 187, 265, 371, 385, 415, 581, 583, 595, 901, 913, 935, 1309, 1411, 1855, 2905, 2915, 4081, 4399, 4505, 4565, 6307, 6391, 6545, 7055, 9877, 9911, 15521, 20405, 21995, 30793, 31535, 31955, 48389, 49385, 49555, 69377, 74783, 77605, 108647, 153965, 241945, 338723, 346885, 373915, 523481, 543235, 822613, 1693615, 2617405, 4113065, 5758291, 28791455]

約数ペア:

[(1, 28791455), (5, 5758291), (7, 4113065), (11, 2617405), (17, 1693615), (35, 822613), (53, 543235), (55, 523481), (77, 373915), (83, 346885), (85, 338723), (119, 241945), (187, 153965), (265, 108647), (371, 77605), (385, 74783), (415, 69377), (581, 49555), (583, 49385), (595, 48389), (901, 31955), (913, 31535), (935, 30793), (1309, 21995), (1411, 20405), (1855, 15521), (2905, 9911), (2915, 9877), (4081, 7055), (4399, 6545), (4505, 6391), (4565, 6307)]