28255280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{641}}^1$

素因数の和:702

約数の個数: 80

約数和(自身を含む): 71647200

約数和(自身を除く): 43391920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 641, 760, 1102, 1160, 1282, 1520, 2204, 2320, 2564, 2755, 3205, 4408, 5128, 5510, 6410, 8816, 10256, 11020, 12179, 12820, 18589, 22040, 24358, 25640, 37178, 44080, 48716, 51280, 60895, 74356, 92945, 97432, 121790, 148712, 185890, 194864, 243580, 297424, 353191, 371780, 487160, 706382, 743560, 974320, 1412764, 1487120, 1765955, 2825528, 3531910, 5651056, 7063820, 14127640, 28255280]

約数ペア:

[(1, 28255280), (2, 14127640), (4, 7063820), (5, 5651056), (8, 3531910), (10, 2825528), (16, 1765955), (19, 1487120), (20, 1412764), (29, 974320), (38, 743560), (40, 706382), (58, 487160), (76, 371780), (80, 353191), (95, 297424), (116, 243580), (145, 194864), (152, 185890), (190, 148712), (232, 121790), (290, 97432), (304, 92945), (380, 74356), (464, 60895), (551, 51280), (580, 48716), (641, 44080), (760, 37178), (1102, 25640), (1160, 24358), (1282, 22040), (1520, 18589), (2204, 12820), (2320, 12179), (2564, 11020), (2755, 10256), (3205, 8816), (4408, 6410), (5128, 5510)]