28876965

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 54577152

約数和(自身を除く): 25700187

約数列:

[1, 3, 5, 13, 15, 17, 31, 39, 51, 65, 85, 93, 155, 195, 221, 255, 281, 403, 465, 527, 663, 843, 1105, 1209, 1405, 1581, 2015, 2635, 3315, 3653, 4215, 4777, 6045, 6851, 7905, 8711, 10959, 14331, 18265, 20553, 23885, 26133, 34255, 43555, 54795, 62101, 71655, 102765, 113243, 130665, 148087, 186303, 310505, 339729, 444261, 566215, 740435, 931515, 1698645, 1925131, 2221305, 5775393, 9625655, 28876965]

約数ペア:

[(1, 28876965), (3, 9625655), (5, 5775393), (13, 2221305), (15, 1925131), (17, 1698645), (31, 931515), (39, 740435), (51, 566215), (65, 444261), (85, 339729), (93, 310505), (155, 186303), (195, 148087), (221, 130665), (255, 113243), (281, 102765), (403, 71655), (465, 62101), (527, 54795), (663, 43555), (843, 34255), (1105, 26133), (1209, 23885), (1405, 20553), (1581, 18265), (2015, 14331), (2635, 10959), (3315, 8711), (3653, 7905), (4215, 6851), (4777, 6045)]