27878620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:491

約数の個数: 96

約数和(自身を含む): 74866176

約数和(自身を除く): 46987556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 140, 154, 172, 215, 220, 301, 308, 385, 421, 430, 473, 602, 770, 842, 860, 946, 1204, 1505, 1540, 1684, 1892, 2105, 2365, 2947, 3010, 3311, 4210, 4631, 4730, 5894, 6020, 6622, 8420, 9262, 9460, 11788, 13244, 14735, 16555, 18103, 18524, 23155, 29470, 32417, 33110, 36206, 46310, 58940, 64834, 66220, 72412, 90515, 92620, 126721, 129668, 162085, 181030, 199133, 253442, 324170, 362060, 398266, 506884, 633605, 648340, 796532, 995665, 1267210, 1393931, 1991330, 2534420, 2787862, 3982660, 5575724, 6969655, 13939310, 27878620]

約数ペア:

[(1, 27878620), (2, 13939310), (4, 6969655), (5, 5575724), (7, 3982660), (10, 2787862), (11, 2534420), (14, 1991330), (20, 1393931), (22, 1267210), (28, 995665), (35, 796532), (43, 648340), (44, 633605), (55, 506884), (70, 398266), (77, 362060), (86, 324170), (110, 253442), (140, 199133), (154, 181030), (172, 162085), (215, 129668), (220, 126721), (301, 92620), (308, 90515), (385, 72412), (421, 66220), (430, 64834), (473, 58940), (602, 46310), (770, 36206), (842, 33110), (860, 32417), (946, 29470), (1204, 23155), (1505, 18524), (1540, 18103), (1684, 16555), (1892, 14735), (2105, 13244), (2365, 11788), (2947, 9460), (3010, 9262), (3311, 8420), (4210, 6622), (4631, 6020), (4730, 5894)]