18204416

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 39735360

約数和(自身を除く): 21530944

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 64, 68, 89, 94, 128, 136, 178, 188, 256, 272, 356, 376, 544, 712, 752, 799, 1088, 1424, 1504, 1513, 1598, 2176, 2848, 3008, 3026, 3196, 4183, 4352, 5696, 6016, 6052, 6392, 8366, 11392, 12032, 12104, 12784, 16732, 22784, 24208, 25568, 33464, 48416, 51136, 66928, 71111, 96832, 102272, 133856, 142222, 193664, 204544, 267712, 284444, 387328, 535424, 568888, 1070848, 1137776, 2275552, 4551104, 9102208, 18204416]

約数ペア:

[(1, 18204416), (2, 9102208), (4, 4551104), (8, 2275552), (16, 1137776), (17, 1070848), (32, 568888), (34, 535424), (47, 387328), (64, 284444), (68, 267712), (89, 204544), (94, 193664), (128, 142222), (136, 133856), (178, 102272), (188, 96832), (256, 71111), (272, 66928), (356, 51136), (376, 48416), (544, 33464), (712, 25568), (752, 24208), (799, 22784), (1088, 16732), (1424, 12784), (1504, 12104), (1513, 12032), (1598, 11392), (2176, 8366), (2848, 6392), (3008, 6052), (3026, 6016), (3196, 5696), (4183, 4352)]