18719536

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 42283008

約数和(自身を除く): 23563472

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 47, 62, 73, 88, 94, 124, 146, 176, 188, 248, 292, 341, 376, 496, 517, 584, 682, 752, 803, 1034, 1168, 1364, 1457, 1606, 2068, 2263, 2728, 2914, 3212, 3431, 4136, 4526, 5456, 5828, 6424, 6862, 8272, 9052, 11656, 12848, 13724, 16027, 18104, 23312, 24893, 27448, 32054, 36208, 37741, 49786, 54896, 64108, 75482, 99572, 106361, 128216, 150964, 199144, 212722, 256432, 301928, 398288, 425444, 603856, 850888, 1169971, 1701776, 2339942, 4679884, 9359768, 18719536]

約数ペア:

[(1, 18719536), (2, 9359768), (4, 4679884), (8, 2339942), (11, 1701776), (16, 1169971), (22, 850888), (31, 603856), (44, 425444), (47, 398288), (62, 301928), (73, 256432), (88, 212722), (94, 199144), (124, 150964), (146, 128216), (176, 106361), (188, 99572), (248, 75482), (292, 64108), (341, 54896), (376, 49786), (496, 37741), (517, 36208), (584, 32054), (682, 27448), (752, 24893), (803, 23312), (1034, 18104), (1168, 16027), (1364, 13724), (1457, 12848), (1606, 11656), (2068, 9052), (2263, 8272), (2728, 6862), (2914, 6424), (3212, 5828), (3431, 5456), (4136, 4526)]