28254160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 72620352

約数和(自身を除く): 44366192

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 97, 110, 176, 194, 220, 331, 388, 440, 485, 662, 776, 880, 970, 1067, 1324, 1552, 1655, 1940, 2134, 2648, 3310, 3641, 3880, 4268, 5296, 5335, 6620, 7282, 7760, 8536, 10670, 13240, 14564, 17072, 18205, 21340, 26480, 29128, 32107, 36410, 42680, 58256, 64214, 72820, 85360, 128428, 145640, 160535, 256856, 291280, 321070, 353177, 513712, 642140, 706354, 1284280, 1412708, 1765885, 2568560, 2825416, 3531770, 5650832, 7063540, 14127080, 28254160]

約数ペア:

[(1, 28254160), (2, 14127080), (4, 7063540), (5, 5650832), (8, 3531770), (10, 2825416), (11, 2568560), (16, 1765885), (20, 1412708), (22, 1284280), (40, 706354), (44, 642140), (55, 513712), (80, 353177), (88, 321070), (97, 291280), (110, 256856), (176, 160535), (194, 145640), (220, 128428), (331, 85360), (388, 72820), (440, 64214), (485, 58256), (662, 42680), (776, 36410), (880, 32107), (970, 29128), (1067, 26480), (1324, 21340), (1552, 18205), (1655, 17072), (1940, 14564), (2134, 13240), (2648, 10670), (3310, 8536), (3641, 7760), (3880, 7282), (4268, 6620), (5296, 5335)]