28640535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 57867264

約数和(自身を除く): 29226729

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 137, 165, 181, 231, 385, 411, 543, 685, 905, 959, 1155, 1267, 1507, 1991, 2055, 2715, 2877, 3801, 4521, 4795, 5973, 6335, 7535, 9955, 10549, 13937, 14385, 19005, 22605, 24797, 29865, 31647, 41811, 52745, 69685, 74391, 123985, 158235, 173579, 209055, 272767, 371955, 520737, 818301, 867895, 1363835, 1909369, 2603685, 4091505, 5728107, 9546845, 28640535]

約数ペア:

[(1, 28640535), (3, 9546845), (5, 5728107), (7, 4091505), (11, 2603685), (15, 1909369), (21, 1363835), (33, 867895), (35, 818301), (55, 520737), (77, 371955), (105, 272767), (137, 209055), (165, 173579), (181, 158235), (231, 123985), (385, 74391), (411, 69685), (543, 52745), (685, 41811), (905, 31647), (959, 29865), (1155, 24797), (1267, 22605), (1507, 19005), (1991, 14385), (2055, 13937), (2715, 10549), (2877, 9955), (3801, 7535), (4521, 6335), (4795, 5973)]