208931008

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:690

約数の個数: 112

約数和(自身を含む): 501054624

約数和(自身を除く): 292123616

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 37, 44, 52, 64, 74, 88, 104, 143, 148, 176, 208, 286, 296, 352, 407, 416, 481, 572, 592, 617, 704, 814, 832, 962, 1144, 1184, 1234, 1628, 1924, 2288, 2368, 2468, 3256, 3848, 4576, 4936, 5291, 6512, 6787, 7696, 8021, 9152, 9872, 10582, 13024, 13574, 15392, 16042, 19744, 21164, 22829, 26048, 27148, 30784, 32084, 39488, 42328, 45658, 54296, 64168, 84656, 88231, 91316, 108592, 128336, 169312, 176462, 182632, 217184, 251119, 256672, 296777, 338624, 352924, 365264, 434368, 502238, 513344, 593554, 705848, 730528, 1004476, 1187108, 1411696, 1461056, 2008952, 2374216, 2823392, 3264547, 4017904, 4748432, 5646784, 6529094, 8035808, 9496864, 13058188, 16071616, 18993728, 26116376, 52232752, 104465504, 208931008]

約数ペア:

[(1, 208931008), (2, 104465504), (4, 52232752), (8, 26116376), (11, 18993728), (13, 16071616), (16, 13058188), (22, 9496864), (26, 8035808), (32, 6529094), (37, 5646784), (44, 4748432), (52, 4017904), (64, 3264547), (74, 2823392), (88, 2374216), (104, 2008952), (143, 1461056), (148, 1411696), (176, 1187108), (208, 1004476), (286, 730528), (296, 705848), (352, 593554), (407, 513344), (416, 502238), (481, 434368), (572, 365264), (592, 352924), (617, 338624), (704, 296777), (814, 256672), (832, 251119), (962, 217184), (1144, 182632), (1184, 176462), (1234, 169312), (1628, 128336), (1924, 108592), (2288, 91316), (2368, 88231), (2468, 84656), (3256, 64168), (3848, 54296), (4576, 45658), (4936, 42328), (5291, 39488), (6512, 32084), (6787, 30784), (7696, 27148), (8021, 26048), (9152, 22829), (9872, 21164), (10582, 19744), (13024, 16042), (13574, 15392)]